Pretérito Imperfecto: The Only Guide You'll Ever Need!

22 minutes on read

Understanding Spanish verb tenses is essential for fluency, and the Pretérito Imperfecto holds a significant place within that grammatical landscape. For students tackling the nuances of what is preterito imperfecto, distinguishing it from the Pretérito Indefinido is crucial for accurate communication. Resources such as the Real Academia Española (RAE) provide definitive guidance on its usage, while language learning platforms like Duolingo offer practical exercises to master its application in various conversational contexts.

The Spanish language, rich in its nuances and expressive power, relies on a sophisticated system of verb tenses to paint vivid pictures of the past. Among these, the Pretérito Imperfecto, often simply called the imperfect tense, stands out as a crucial element for conveying a sense of ongoing action, habitual behavior, and descriptive detail.

It's more than just a way to talk about what happened; it's a way to immerse your listener in the atmosphere of a past moment.

The Imperfect Tense: A Cornerstone of Spanish Grammar

The Pretérito Imperfecto isn't just another verb tense to memorize; it's a fundamental building block for constructing narratives, sharing memories, and expressing yourself fluently in Spanish. Mastering it unlocks a deeper understanding of the language's structure and allows you to communicate with greater precision and color.

Think of it as the artist's brush that adds texture and depth to your verbal canvas.

Why the Imperfect Tense Matters

Consider the difference between saying "I went to the store" and "I used to go to the store." The first statement describes a completed action, a single event in the past. The second evokes a sense of routine, a repeated action that formed part of your life. This is the power of the Pretérito Imperfecto – its ability to convey duration, habit, and description.

It allows you to set the scene, describe people's characteristics, and recount events as they unfolded. Imagine trying to describe a childhood memory without using the imperfect tense. You'd struggle to capture the full essence of the experience, the sights, sounds, and feelings that made it unique.

Embarking on a Journey to Imperfect Mastery

This article serves as your comprehensive guide to the Pretérito Imperfecto. Our objective is simple: to provide you with a clear, concise, and practical understanding of this essential tense.

We will explore its forms, its uses, and its nuances, equipping you with the knowledge and tools you need to wield it with confidence and skill.

Whether you're a beginner just starting your Spanish journey or an advanced learner seeking to refine your grammar, this guide will empower you to master the Pretérito Imperfecto and unlock new levels of fluency and expressiveness. Let's delve in and begin to unravel the secrets of this powerful tense.

The Spanish language, rich in its nuances and expressive power, relies on a sophisticated system of verb tenses to paint vivid pictures of the past. Among these, the Pretérito Imperfecto, often simply called the imperfect tense, stands out as a crucial element for conveying a sense of ongoing action, habitual behavior, and descriptive detail.

It's more than just a way to talk about what happened; it's a way to immerse your listener in the atmosphere of a past moment.

The Imperfect Tense: A Cornerstone of Spanish Grammar

The Pretérito Imperfecto isn't just another verb tense to memorize; it's a fundamental building block for constructing narratives, sharing memories, and expressing yourself fluently in Spanish. Mastering it unlocks a deeper understanding of the language's structure and allows you to communicate with greater precision and color.

Think of it as the artist's brush that adds texture and depth to your verbal canvas.

Why the Imperfect Tense Matters

Consider the difference between saying "I went to the store" and "I used to go to the store." The first statement describes a completed action, a single event in the past. The second evokes a sense of routine, a repeated action that formed part of your life.

This is the power of the Pretérito Imperfecto – its ability to convey duration, habit, and description.

It allows you to set the scene, describe people's characteristics, and recount events as they unfolded. Imagine trying to describe a childhood memory without using the imperfect tense. You'd struggle to capture...

With this context in mind, let's dive into the true meaning of the Pretérito Imperfecto and how it functions within the tapestry of Spanish verb tenses, going beyond the simple notion of 'the past'.

Defining the Pretérito Imperfecto: More Than Just the Past

The Pretérito Imperfecto, or imperfect tense, is a past tense in Spanish, but it's crucial to understand that it doesn't simply indicate a completed action in the past. Its function is more nuanced, focusing on actions that were ongoing, habitual, or descriptive at some point in the past.

Think of it as the tense of "used to" or "was/were -ing" in English.

Unpacking the Imperfect Tense

In simple terms, the Pretérito Imperfecto paints a picture of what was happening or what used to happen.

It provides context, background, and atmosphere to your storytelling. Unlike tenses that focus on completed actions, the imperfect tense emphasizes the process, the duration, and the characteristics of a past situation.

For example, "Yo leía muchos libros" translates to "I used to read many books" or "I was reading many books," implying a recurring activity.

The Imperfect Tense in Action: Ongoing, Habitual, Descriptive

Let's break down the key uses of the Pretérito Imperfecto:

  • Ongoing Actions: This describes actions that were in progress at a specific time in the past. For instance, "Ella cantaba mientras yo cocinaba" (She was singing while I was cooking). It conveys that both actions were happening simultaneously.

  • Habitual Actions: This illustrates actions that were repeated regularly in the past. For example, "Nosotros íbamos a la playa cada verano" (We used to go to the beach every summer). This expresses a recurring event that was part of a past routine.

  • Descriptions: This provides descriptions of people, places, or things in the past. "La casa era grande y tenía un jardín hermoso" (The house was big and had a beautiful garden). This illustrates characteristics or features of a past setting.

Contextualizing the Imperfect: A Brief Comparison

To fully grasp the Pretérito Imperfecto, it's helpful to distinguish it from other past tenses, particularly the Pretérito Indefinido (also known as Pretérito Perfecto Simple). While both relate to the past, they differ significantly in their focus.

The Pretérito Indefinido emphasizes completed actions with a clear beginning and end.

For example, "Ayer fui al supermercado" (Yesterday I went to the supermarket) signifies a single, finished event.

In contrast, the Pretérito Imperfecto provides background information, describes ongoing actions, or depicts habitual behaviors.

Understanding this distinction is crucial for choosing the appropriate tense and conveying your intended meaning with accuracy. The nuances are subtle, but the impact on clarity is significant.

By recognizing these distinctions, you begin to appreciate the depth and richness of the Spanish language.

The Imperfect Tense: A Cornerstone of Spanish Grammar

The Pretérito Imperfecto isn't just another verb tense to memorize; it's a fundamental building block for constructing narratives, sharing memories, and expressing yourself fluently in Spanish. Mastering it unlocks a deeper understanding of the language's structure and allows you to communicate with greater precision and color.

Think of it as the artist's brush that adds texture and depth to your verbal canvas.

Why the Imperfect Tense Matters

Consider the difference between saying "I went to the store" and "I used to go to the store." The first statement describes a completed action, a single event in the past. The second evokes a sense of routine, a repeated action that formed part of your life.

This is the power of the Pretérito Imperfecto – its ability to convey duration, habit, and description. It allows you to set the scene, describe people's characteristics, and recount events as they unfolded. Imagine trying to describe a childhood memory without using the imperfect tense. You'd struggle to capture the essence of those recurring moments, the atmosphere, and the feelings associated with them.

Now that we've established the importance of the Pretérito Imperfecto, let's dive into the mechanics of how it's formed. Understanding the rules of conjugation is key to wielding this tense with confidence and accuracy. Prepare to roll up your sleeves and delve into the world of verb endings!

Mastering Conjugation: Regular Verbs in the Imperfect Tense

Conjugation, the process of modifying a verb to reflect person, number, tense, and mood, is a cornerstone of Spanish grammar. It might seem daunting at first, but once you grasp the underlying principles, you'll find it becomes second nature.

Think of it as learning the steps to a dance – once you know the basic moves, you can adapt them to different rhythms.

The Essence of Conjugation

In essence, conjugation allows us to pinpoint who is performing the action and when the action is taking place. It adds a layer of precision and clarity to our communication, allowing us to paint a more complete and accurate picture with our words.

To understand conjugation in the Pretérito Imperfecto, we must first look at regular verbs.

Regular Verb Endings: The Key to Imperfect Tense

Regular verbs in Spanish follow predictable patterns of conjugation. In the Pretérito Imperfecto, these patterns are particularly straightforward, making it a relatively easy tense to master for regular verbs. Spanish verbs are categorized into three groups based on their infinitive endings: -ar, -er, and -ir. Each group has its own set of endings in the imperfect tense.

Let's explore each of these groups in detail.

-ar Verbs: A Step-by-Step Guide

Verbs ending in -ar (like hablar - to speak, cantar - to sing, bailar - to dance) follow a specific pattern. Here's how they conjugate in the Pretérito Imperfecto:

Pronoun Ending Example: Hablar (to speak)
Yo -aba Yo hablaba (I used to speak)
-abas Tú hablabas (You used to speak)
Él/Ella/Usted -aba Él hablaba (He used to speak)
Nosotros -ábamos Nosotros hablábamos (We used to speak)
Vosotros -abais Vosotros hablabais (You [plural, Spain] used to speak)
Ellos/Ustedes -aban Ellos hablaban (They used to speak)

Notice the consistent -aba ending for the yo, él/ella/usted forms, and the distinctive -ábamos for nosotros. Also notice the use of accented letters, which are important to ensure the correct pronunciation of each word.

Here's an example sentence: "Cuando era niño, yo hablaba mucho con mi abuelo." (When I was a child, I used to talk a lot with my grandfather.)

-er Verbs: Unveiling the Pattern

Verbs ending in -er (like comer - to eat, beber - to drink, aprender - to learn) share a different set of endings in the imperfect tense. These endings are uniform and predictable, again helping to simplify the process.

Pronoun Ending Example: Comer (to eat)
Yo -ía Yo comía (I used to eat)
-ías Tú comías (You used to eat)
Él/Ella/Usted -ía Él comía (He used to eat)
Nosotros -íamos Nosotros comíamos (We used to eat)
Vosotros -íais Vosotros comíais (You [plural, Spain] used to eat)
Ellos/Ustedes -ían Ellos comían (They used to eat)

Pay close attention to the accent mark on the i in each of these endings. This is crucial for correct pronunciation.

Here's an example sentence: "De pequeño, siempre comía helado después de la escuela." (As a child, I always used to eat ice cream after school.)

-ir Verbs: A Familiar Echo

Interestingly, verbs ending in -ir (like vivir - to live, escribir - to write, abrir - to open) use the same set of endings as -er verbs in the Pretérito Imperfecto. This significantly simplifies the learning process!

Pronoun Ending Example: Vivir (to live)
Yo -ía Yo vivía (I used to live)
-ías Tú vivías (You used to live)
Él/Ella/Usted -ía Él vivía (He used to live)
Nosotros -íamos Nosotros vivíamos (We used to live)
Vosotros -íais Vosotros vivíais (You [plural, Spain] used to live)
Ellos/Ustedes -ían Ellos vivían (They used to live)

Here's an example sentence: "Vivíamos en una casa grande cerca del parque." (We used to live in a big house near the park.)

By mastering these regular verb conjugations, you'll establish a strong foundation for using the Pretérito Imperfecto.

We've seen how smoothly regular verbs glide into the Pretérito Imperfecto.

Unfortunately, the Spanish language, like any other, has its rebels – the irregular verbs.

These verbs don't follow the standard conjugation patterns.

While many irregular verbs exist, a handful appear frequently and are essential to master early on.

In the Pretérito Imperfecto, the good news is that the number of irregular verbs is drastically reduced, making them easier to handle.

We will focus on three of the most common: ser (to be), ir (to go), and ver (to see).

Understanding Irregular Verbs

Irregular verbs deviate from the standard conjugation rules.

Instead of simply adding the typical imperfect endings to the verb stem, their stems change, or they use entirely different forms.

Recognizing and memorizing these irregularities is crucial for accurate and fluent communication.

Luckily, in the Imperfect Tense, only a select few verbs exhibit irregular behavior.

Ser (To Be): Conjugation and Usage

The verb ser is one of the most fundamental verbs in Spanish.

In the Imperfect Tense, ser describes inherent qualities, characteristics, or states of being in the past.

Its conjugation is as follows:

  • Yo era (I was)
  • eras (You were)
  • Él/Ella/Usted era (He/She/You were)
  • Nosotros/Nosotras éramos (We were)
  • Vosotros/Vosotras erais (You were)
  • Ellos/Ellas/Ustedes eran (They/You were)

Consider these example sentences:

  • Yo era muy tímido de niño. (I was very shy as a child.)
  • Antes, la vida era más sencilla. (Before, life was simpler.)

Ir (To Go): Conjugation and Context

Ir, meaning "to go," is another incredibly common verb.

In the Imperfect Tense, ir expresses repeated trips, routines, or movements in the past.

Here's how it's conjugated:

  • Yo iba (I was going)
  • ibas (You were going)
  • Él/Ella/Usted iba (He/She/You were going)
  • Nosotros/Nosotras íbamos (We were going)
  • Vosotros/Vosotras ibais (You were going)
  • Ellos/Ellas/Ustedes iban (They/You were going)

Here are some examples:

  • Todos los veranos, nosotros íbamos a la playa. (Every summer, we used to go to the beach.)
  • Ella iba al gimnasio todos los días. (She went to the gym every day.)

Ver (To See): Conjugation and Application

The verb ver, meaning "to see," describes the action of perceiving with the eyes.

In the Imperfect Tense, it often describes what someone used to see or observe regularly.

Its conjugation is:

  • Yo veía (I was seeing)
  • veías (You were seeing)
  • Él/Ella/Usted veía (He/She/You were seeing)
  • Nosotros/Nosotras veíamos (We were seeing)
  • Vosotros/Vosotras veíais (You were seeing)
  • Ellos/Ellas/Ustedes veían (They/You were seeing)

Let's look at some sentences using veía:

  • De niño, yo veía muchos dibujos animados. (As a child, I watched a lot of cartoons.)
  • Antes, veíamos las estrellas con más claridad. (Before, we saw the stars more clearly.)

By mastering the conjugations and understanding the context in which ser, ir, and ver are used in the Pretérito Imperfecto, you significantly enhance your ability to express yourself accurately and vividly in Spanish.

Unlocking the Uses: When to Use the Pretérito Imperfecto

Having explored the mechanics of conjugating both regular and irregular verbs in the Pretérito Imperfecto, it's time to delve into the practical applications of this versatile tense. Understanding when to use the Imperfecto is just as important as knowing how to conjugate it. This section will illuminate the various scenarios where the Pretérito Imperfecto shines, providing clarity and numerous examples to solidify your grasp.

Habitual Actions in the Past

One of the primary uses of the Pretérito Imperfecto is to describe actions that were habitual or repeated in the past. These are actions that you used to do, would do, or did regularly.

Adverbs of time, such as siempre (always), a menudo (often), cada día (every day), generalmente (generally), and normalmente (normally), often accompany these sentences, reinforcing the sense of repetition.

  • Ejemplos:

    • Cuando era niño, siempre jugaba al fútbol después de la escuela. (When I was a child, I always used to play soccer after school.)

    • A menudo íbamos a la playa en verano. (We often

      **went to the beach in the summer.)

    • De pequeño, cada día veía dibujos animados. (As a child, I watched cartoons every day.)

Descriptions of People, Places, and Situations

The Pretérito Imperfecto is also used to paint a picture of the past, describing people, places, or situations. It provides background information, setting the scene for a narrative.

These descriptions often involve physical characteristics, personality traits, emotional states, or the general atmosphere of a place.

  • Ejemplos:

    • La casa era grande y luminosa. Tenía un jardín enorme con muchos árboles. (The house was big and bright. It had a huge garden with many trees.)

    • Mi abuela era una mujer muy amable y cariñosa. (My grandmother was a very kind and caring woman.)

    • El día estaba soleado y el aire era cálido. (The day was sunny and the air was warm.)

Expressing Time in the Past

When telling a story or recounting events, the Pretérito Imperfecto is used to express what time it was when something else happened. It gives a sense of the temporal context.

  • Ejemplos:

    • **Eran las tres de la tarde cuando llegué a casa. (It was three in the afternoon when I arrived home.)

    • Era medianoche y todos dormían. (It was

      **midnight and everyone was sleeping.)

Expressing Age in the Past

Similar to expressing time, the Pretérito Imperfecto is used to indicate someone's age in the past.

  • Ejemplos:

    • Cuando tenía diez años, fui a Disney World. (When I was ten years old, I went to Disney World.)

    • Mi hermano tenía cinco años cuando aprendió a leer. (My brother was five years old when he learned to read.)

Providing Background Information or Setting the Scene

The Pretérito Imperfecto is invaluable for setting the stage in a narrative, providing background information that helps the audience understand the context of the story. It establishes the existing conditions before a specific event occurred.

  • Ejemplos:

    • **Llovía a cántaros y el viento soplaba con fuerza. De repente, oímos un trueno. (It was raining heavily and the wind was blowing strongly. Suddenly, we heard thunder.)

    • Estaba leyendo un libro cuando sonó el teléfono. (I was

      **reading a book when the phone rang.)

Expressing Politeness

The Pretérito Imperfecto can also be used to express politeness, particularly when making requests or expressing desires. Using the Imperfecto softens the request, making it sound less demanding and more courteous.

This is often achieved by using the verb querer (to want) in the Imperfecto form (quería) instead of the present tense (quiero).

  • Ejemplos:

    • **Quería pedirle un favor. (I wanted to ask you a favor.) (More polite than Quiero pedirle un favor.

      **)

    • **Quería hablar con el gerente, por favor. (I wanted to speak with the manager, please.) (More polite than Quiero hablar con el gerente.*)

By understanding these key uses of the Pretérito Imperfecto, you can significantly enhance your ability to communicate effectively and accurately in Spanish, adding depth and nuance to your descriptions of the past.

Having explored the various scenarios where the Pretérito Imperfecto shines, it's now time to draw a crucial distinction. Understanding the difference between the Imperfecto and other past tenses is paramount for accurate and nuanced communication in Spanish. Let's focus on the Pretérito Indefinido (also known as Pretérito Perfecto Simple) and dissect when to use each.

Pretérito Imperfecto vs. Pretérito Indefinido: Understanding the Nuances

The Pretérito Imperfecto and the Pretérito Indefinido both describe past actions, but they do so with different perspectives. Mastering their distinct uses is essential to conveying the intended meaning and ensuring clarity in your Spanish communication.

Core Differences Explained

The fundamental difference lies in how each tense views the action:

  • The Pretérito Imperfecto describes ongoing, habitual, or descriptive actions in the past. It paints a picture, setting the scene or describing a state of being. The beginning and end of the action are not emphasized; instead, the focus is on the action's continuity or repetition.

  • The Pretérito Indefinido, on the other hand, describes completed actions in the past with a defined beginning and end. It presents events as finished and discrete, moving the narrative forward.

Scenarios: Choosing the Right Tense

Let's explore some specific scenarios to illustrate when each tense is more appropriate:

Describing a Scene vs. Reporting an Event

Imagine you want to describe what was happening when something else occurred. The Imperfecto sets the scene, while the Indefinido introduces the interrupting action.

For instance:

  • Imperfecto: Llovía a cántaros (It was raining cats and dogs). This sets the scene.
  • Indefinido: De repente, sonó el teléfono (Suddenly, the phone rang). This is the interrupting action.

Therefore, the combined sentence would be: Llovía a cántaros cuando, de repente, sonó el teléfono. (It was raining cats and dogs when, suddenly, the phone rang.)

Habitual Actions vs. Single Occurrences

The Imperfecto expresses repeated actions, while the Indefinido describes a single, completed event.

Consider this example:

  • Imperfecto: Todos los veranos, íbamos a la playa (Every summer, we used to go to the beach). This is a habitual action.

  • Indefinido: Ayer fui a la playa (Yesterday I went to the beach). This is a single, completed action.

Providing Background Information vs. Reporting Specific Actions

Use the Imperfecto to give background details or descriptions. Use the Indefinido to narrate specific events that took place.

  • Imperfecto: La casa era grande y antigua (The house was big and old). This provides background information.

  • Indefinido: Compramos la casa el año pasado (We bought the house last year). This reports a specific action.

Comparative Examples: Seeing the Difference

Here are some side-by-side examples to solidify your understanding:

Pretérito Imperfecto Pretérito Indefinido
Cuando era niño, jugaba al fútbol. (When I was a child, I used to play soccer.) Jugué al fútbol ayer. (I played soccer yesterday.)
Ella siempre llegaba tarde. (She was always arriving late.) Ella llegó tarde ayer. (She arrived late yesterday.)
Hacía frío en la noche. (It was cold at night.) Hizo frío ayer. (It was cold yesterday.)

Notice how the Imperfecto emphasizes the ongoing nature or repetition of the action, while the Indefinido focuses on the completed event.

By carefully considering the context and the intended meaning, you can confidently choose between the Pretérito Imperfecto and the Pretérito Indefinido, adding depth and accuracy to your Spanish expression.

Practice Makes Perfect: Exercises for Mastery

Having explored the various scenarios where the Pretérito Imperfecto shines, it's now time to draw a crucial distinction. Understanding the difference between the Imperfecto and other past tenses is paramount for accurate and nuanced communication in Spanish. Let's focus on the Pretérito Indefinido (also known as Pretérito Perfecto Simple) and dissect when to use each.

Now that you have a solid grasp of the Pretérito Imperfecto's forms and uses, the next logical step is to put your knowledge into practice. Active engagement with the material is key to truly internalizing the nuances of this essential tense. It’s one thing to understand the rules; it’s another to apply them effortlessly in conversation and writing. Consistent practice will transform your theoretical understanding into practical fluency.

The Importance of Active Learning

Passive reading alone is rarely sufficient for mastering a language. You must actively engage with the material to reinforce your understanding and identify areas where you may need further review. Think of practice as the bridge between knowledge and fluency. The more you practice, the stronger that bridge becomes.

Suggested Practice Exercises

To help you solidify your understanding of the Pretérito Imperfecto, here are some effective practice exercises:

Fill-in-the-Blanks Exercises

Fill-in-the-blanks exercises are a great way to focus on accurate verb conjugation. These exercises provide a structured environment for applying your knowledge of regular and irregular verb forms.

Look for exercises that present sentences with missing verbs. Your task is to choose the correct form of the verb in the Pretérito Imperfecto based on the context of the sentence.

For example:

  • Yo

    _(estudiar) español cuando era niño. (Yo estudiaba español cuando era niño.)

  • Nosotros_ (vivir) en España durante el verano. (Nosotros vivíamos en España durante el verano.)

Translation Exercises

Translation exercises challenge you to think critically about when and how to use the Pretérito Imperfecto in different contexts. By translating sentences from English to Spanish, you are forced to actively choose the appropriate tense and verb forms.

Focus on translating sentences that describe habitual actions, past descriptions, or background information. This will help you reinforce the specific uses of the Pretérito Imperfecto.

For example:

  • "I used to play soccer every day after school." ("Yo jugaba al fútbol todos los días después de la escuela.")
  • "The weather was beautiful that day." ("El tiempo era hermoso ese día.")

Writing Short Paragraphs Using the Imperfect Tense

Writing short paragraphs is perhaps the most challenging, yet rewarding, exercise. It allows you to integrate your knowledge of the Pretérito Imperfecto into a more creative and expressive form.

Choose a topic that lends itself to descriptions of the past. Think about describing your childhood home, a past vacation, or a memorable event.

Focus on using the Pretérito Imperfecto to set the scene, describe people and places, and convey habitual actions. This will give you valuable practice in using the tense in a more natural and fluid way.

Tips for Effective Practice

  • Be Consistent: Dedicate a specific amount of time each day or week to practice. Consistent, even short, practice sessions are more effective than sporadic, longer ones.
  • Focus on Accuracy: Pay close attention to verb conjugations and sentence structure. Make sure you are using the correct verb forms and that your sentences are grammatically correct.
  • Seek Feedback: Ask a native speaker or a Spanish teacher to review your work and provide feedback. This can help you identify areas where you need to improve and avoid developing bad habits.
  • Don't Be Afraid to Make Mistakes: Mistakes are a natural part of the learning process. Don't be discouraged by them. Instead, use them as opportunities to learn and grow.
  • Use Online Resources: Take advantage of the wealth of online resources available, such as websites, apps, and online forums. These resources can provide you with additional practice exercises, grammar explanations, and opportunities to interact with other learners.

By actively engaging with the Pretérito Imperfecto through these practice exercises and following these tips, you will be well on your way to mastering this essential tense and achieving greater fluency in Spanish. Remember, consistent effort and a willingness to learn from your mistakes are the keys to success.

Pretérito Imperfecto: Frequently Asked Questions

Here are some common questions about the Pretérito Imperfecto, a key past tense in Spanish. We hope these FAQs clarify any confusion you might have.

When should I use the Pretérito Imperfecto instead of the Pretérito Indefinido (simple past)?

The Pretérito Imperfecto describes ongoing or habitual actions in the past. Think of it as the "was/were -ing" tense in English. The Pretérito Indefinido, on the other hand, describes completed actions at a specific point in the past.

How do I conjugate verbs in the Pretérito Imperfecto?

Regular verbs follow a simple pattern. For -ar verbs, the endings are -aba, -abas, -aba, -ábamos, -abais, -aban. For -er and -ir verbs, the endings are -ía, -ías, -ía, -íamos, -íais, -ían. There are only a few irregular verbs.

What is Pretérito Imperfecto typically used for?

The Pretérito Imperfecto is used to describe past habits, ongoing actions, descriptions of people or places in the past, and to set the scene or provide background information. It tells us more about what was happening, not just what happened. This aspect of what is preterito imperfecto sets it apart.

Are there any common trigger words that signal the use of the Pretérito Imperfecto?

Yes, words like siempre (always), a menudo (often), cada día/semana/mes/año (every day/week/month/year), generalmente (generally), normalmente (normally), and mientras (while) often indicate that the Pretérito Imperfecto should be used. These often suggest repeated past actions.

So, that's a wrap on what is preterito imperfecto! Hope this helped you unlock a new level of Spanish understanding. Now go out there and practice – you got this!