Imperfect and imperfect continuous

Q: How do you conjugate regular \(-ar\), \(-er\), and \(-ir\) verbs in the imperfect tense?

Remove the infinitive ending and add: for \(-ar\) : -aba, -abas, -aba, -ábamos, -abais, -aban ; for \(-er\)/\(-ir\) : -ía, -ías, -ía, -íamos, -íais, -ían .

Q: What are the only three irregular verbs in the imperfect tense, and how are they conjugated?

The only three irregulars are ser ( era, eras, era, éramos, erais, eran ), ir ( iba, ibas, iba, íbamos, ibais, iban ), and ver ( veía, veías, veía, veíamos, veíais, veían ).

Q: What are the high-frequency imperfect forms of haber , tener , and estar ?

Había (there was / were), tenía (I/he/she had), and estaba (I was / he was / it was located or feeling).

Q: How are regular gerunds formed for \(-ar\), \(-er\), and \(-ir\) verbs?

Remove \(-ar\) and add \(-ando\) (e.g. hablando ); remove \(-er\) or \(-ir\) and add \(-iendo\) (e.g. comiendo , viviendo ).

Q: What are the common irregular gerund patterns to watch out for?

Stem vowels changing to y to avoid triple vowels (e.g. leer → leyendo ) and stem-changing \(-ir\) verbs changing o → u or e → i (e.g. durmiendo , pidiendo ).

Q: Which trigger words typically indicate the use of the imperfect rather than the preterite?

Words indicating repetition or habit, such as siempre , todos los días , a menudo , generalmente , cuando era joven , and mientras .

Q: In an interrupted action sentence, which tense is used for the ongoing background action and which for the interrupting action?

The ongoing background action uses the imperfect (or imperfect continuous), while the sudden interrupting action uses the preterite .

Q: Why is subject clarification often needed for 1st and 3rd person singular forms in the imperfect tense?

Because the yo and él/ella/usted forms share identical endings (e.g. yo hablaba and él hablaba ), requiring subject pronouns to prevent ambiguity.

Spanish (2024) (1SP1) · Pearson Edexcel GCSE (9-1) · 7 min read · Updated: 27 Aug 2026

Mastering the Imperfect and Imperfect Continuous

Welcome to your complete revision guide for the Imperfect and Imperfect Continuous tenses in Spanish! When talking about the past, English speakers often switch between saying "I played", "I used to play", and "I was playing" without thinking. In Spanish, choosing the right tense paints a crystal-clear picture of whether an action was a one-off completed event, an old habit, a background description, or something happening right at that moment.

Mastering these tenses will unlock your ability to describe your childhood, set scenes in stories, talk about past holidays, and achieve top marks across your GCSE Speaking, Listening, Reading, and Writing exams.

Part 1: The Imperfect Tense (El pretérito imperfecto)

Think of the imperfect tense as a video recording of the past rather than a quick snapshot. It describes ongoing scenes, background states, and things you used to do repeatedly.

When Do We Use the Imperfect Tense?

There are four main situations where you must reach for the imperfect:

1. Habitual or Repeated Past Actions ("Used to" / "Would")
Things you did regularly over a period of time.
• Cuando vivía en Madrid, jugaba al fútbol. (When I lived in Madrid, I used to play football.)
• Todos los veranos íbamos a la playa. (Every summer we would go to the beach.)

2. Ongoing Past Actions / Background Information ("Was / Were doing")
Actions that were in progress in the past where the start and end times do not matter.
• Dormía plácidamente. (I was sleeping peacefully.)

3. Descriptions in the Past
Describing age, weather, physical traits, personality, time, and feelings.
• Age: Tenía 10 años. (I was 10 years old.)
• Weather: Hacía sol y hacía calor. (It was sunny and hot.)
• Physical / Personality: La casa era grande y bonita. (The house was big and pretty.)
• Emotions / States: Estaba muy contento. (I was very happy.)

4. Setting the Scene for an Interrupted Action
Providing background context when a sudden single event (in the preterite) interrupts.
• Dormía cuando sonó el teléfono. (I was sleeping when the phone rang.)

How to Form Regular Imperfect Verbs

Good news: the imperfect is one of the most regular tenses in Spanish! Simply take off the infinitive ending (\(-ar\), \(-er\), or \(-ir\)) and add the appropriate ending.

Regular \(-ar\) Verbs (e.g., hablar - to speak):
• yo: hablaba (I used to speak / was speaking)
• tú: hablabas (you used to speak)
• él / ella / usted: hablaba (he / she / you [polite] used to speak)
• nosotros / nosotras: hablábamos (we used to speak) — Note the accent on the first 'a'!
• vosotros / vosotras: hablabais (you all used to speak)
• ellos / ellas / ustedes: hablaban (they / you all [polite] used to speak)

Regular \(-er\) and \(-ir\) Verbs (e.g., comer - to eat, vivir - to live):
Both \(-er\) and \(-ir\) verbs share the exact same endings. Every single ending carries a written accent on the letter 'í'!
• yo: comía / vivía
• tú: comías / vivías
• él / ella / usted: comía / vivía
• nosotros / nosotras: comíamos / vivíamos
• vosotros / vosotras: comíais / vivíais
• ellos / ellas / ustedes: comían / vivían

The Three Irregular Verbs

Did you know? There are only three irregular verbs in the entire imperfect tense in Spanish!

1. ser (to be):
• yo era
• tú eras
• él/ella/usted era
• nosotros/as éramos (accent on the 'e')
• vosotros/as erais
• ellos/ellas/ustedes eran

2. ir (to go):
• yo iba
• tú ibas
• él/ella/usted iba
• nosotros/as íbamos (accent on the 'i')
• vosotros/as ibais
• ellos/ellas/ustedes iban

3. ver (to see):
• yo veía
• tú veías
• él/ella/usted veía
• nosotros/as veíamos
• vosotros/as veíais
• ellos/ellas/ustedes veían

High-Frequency Verbs to Learn Instantly

• haber: había (there was / there were)
• tener: tenía / tenías / tenía (I / you / he / she had)
• estar: estaba (I was / he was / it was located or feeling)
• ser: era (I was / he was / it was by nature or identity)

Key Takeaway for the Imperfect: Use it for descriptions, habits ("used to"), and ongoing background scenes. Only ser, ir, and ver are irregular!

Part 2: The Imperfect Continuous (El imperfecto continuo)

While the standard imperfect tells us what was going on in general, the imperfect continuous zooms in with a magnifying glass to show that an action was actively taking place at a specific moment in the past.

The Formula

To build the imperfect continuous, use this simple formula:

\(\text{Imperfect Continuous} = \text{Imperfect of \textit{estar}} + \text{Gerund (Present Participle)}\)

Step 1: Conjugate estar in the Imperfect

• yo estaba
• tú estabas
• él / ella / usted estaba
• nosotros / nosotras estábamos (accent on the second 'a')
• vosotros / vosotras estabais
• ellos / ellas / ustedes estaban

Step 2: Form the Gerund

• For \(-ar\) verbs: remove \(-ar\) and add \(-ando\) (e.g., hablar \(\rightarrow\) hablando, jugar \(\rightarrow\) jugando)
• For \(-er\) and \(-ir\) verbs: remove \(-er\)/\(-ir\) and add \(-iendo\) (e.g., comer \(\rightarrow\) comiendo, vivir \(\rightarrow\) viviendo)

Step 3: Watch Out for Irregular Gerunds

• Double Vowel Collision (\(i \rightarrow y\)): When the stem ends in a vowel, the 'i' changes to a 'y' to make it easier to pronounce.
— leer \(\rightarrow\) leyendo
— oír \(\rightarrow\) oyendo
— caer \(\rightarrow\) cayendo

• Stem-Changing \(-ir\) Verbs: Some \(-ir\) verbs change their stem vowel in the gerund.
— dormir \(\rightarrow\) durmiendo (o \(\rightarrow\) u)
— pedir \(\rightarrow\) pidiendo (e \(\rightarrow\) i)
— morir \(\rightarrow\) muriendo (o \(\rightarrow\) u)
— servir \(\rightarrow\) sirviendo (e \(\rightarrow\) i)

Example in Action

• Estaba comiendo cuando llamaron. (I was [actively] eating when they called.)
• Estábamos durmiendo a las diez. (We were sleeping at ten o'clock.)

Key Takeaway for the Imperfect Continuous: Always use the imperfect form of estar + gerund (\(-ando\) / \(-iendo\)) to highlight an action that was in progress right at that moment.

Part 3: Trigger Words & Time Markers

Spotting time markers in exam questions helps you immediately choose the correct tense.

Imperfect & Continuous Triggers (Habitual / Ongoing)

• siempre (always)
• todos los días / todas las semanas (every day / every week)
• a menudo (often)
• generalmente / normalmente (generally / normally)
• de pequeño/a / cuando era joven (when I was little / when I was young)
• mientras (while)
• en aquella época (at that time / back in those days)

Contrast: Preterite Triggers (Specific Completed Events)

• ayer (yesterday)
• anoche (last night)
• la semana pasada (last week)
• el año pasado (last year)
• un día (one day)
• de repente (suddenly)

Part 4: Common Pitfalls & How to Avoid Them

1. Mixing up the Preterite and Imperfect
Don't use the preterite for states or personality traits in the past.
• Incorrect: \(\times\) Fui tímido de niño.
• Correct: \(\checkmark\) Era tímido de niño. (Being shy is a trait/description, not a single completed event.)

2. Getting the "Interrupted Action" Backwards
Remember: the ongoing background action takes the imperfect or imperfect continuous, while the sudden interrupting action takes the preterite.
• Estaba leyendo (or Leía) cuando mi hermano entró. (I was reading [ongoing background] when my brother entered [sudden interruption].)

3. Missing Written Accents (Tildes)
• In regular \(-ar\) verbs, only the nosotros form gets an accent: hablábamos. Do not put accents on forms like hablaba.
• In \(-er\) and \(-ir\) verbs, every single form gets an accent on the í: -ía, -ías, -ía, -íamos, -íais, -ían.
• Do not forget the accent on estábamos!

4. Using ser Instead of estar for Continuous Tenses
English uses "to be" for both traits and continuous actions, but Spanish strictly uses estar for continuous tenses.
• Incorrect: \(\times\) Yo era comiendo.
• Correct: \(\checkmark\) Yo estaba comiendo.

5. Yo and Él/Ella Confusion
In the imperfect tense, the 1st person singular (yo) and 3rd person singular (él/ella/usted) have the exact same ending (e.g., yo hablaba vs él hablaba; yo vivía vs ella vivía). If the sentence could be confusing, add the subject pronoun (yo or él) so the examiner knows who you mean!

Quick Review Summary

• Imperfect Tense: Used for "used to", background descriptions, age, weather, and repeated past habits.
• \(-ar\) endings: -aba, -abas, -aba, -ábamos, -abais, -aban.
• \(-er\) / \(-ir\) endings: -ía, -ías, -ía, -íamos, -íais, -ían (accents on all 'í's!).
• Only 3 irregulars: ser (era), ir (iba), ver (veía).
• Imperfect Continuous: Formed with estaba / estabas / estaba / estábamos / estabais / estaban + gerund (-ando / -iendo) for actions actively in progress.

Quick check

Can you answer these now?

Open each question to check the key ideas from this chapter.

When is the imperfect tense used in Spanish?

It is used for habitual past actions ("used to"), ongoing past actions/background info ("was doing"), descriptions (age, weather, feelings, traits), and setting the scene for an interrupted action.

How do you conjugate regular \(-ar\), \(-er\), and \(-ir\) verbs in the imperfect tense?

Remove the infinitive ending and add: for \(-ar\): -aba, -abas, -aba, -ábamos, -abais, -aban; for \(-er\)/\(-ir\): -ía, -ías, -ía, -íamos, -íais, -ían.

What are the only three irregular verbs in the imperfect tense, and how are they conjugated?

The only three irregulars are ser (era, eras, era, éramos, erais, eran), ir (iba, ibas, iba, íbamos, ibais, iban), and ver (veía, veías, veía, veíamos, veíais, veían).

What are the high-frequency imperfect forms of haber, tener, and estar?

Había (there was / were), tenía (I/he/she had), and estaba (I was / he was / it was located or feeling).

What is the formula for forming the imperfect continuous tense in Spanish?

\(\text{Imperfect of } \textit{estar} + \text{Gerund (Present Participle)}\)

How are regular gerunds formed for \(-ar\), \(-er\), and \(-ir\) verbs?

Remove \(-ar\) and add \(-ando\) (e.g. hablando); remove \(-er\) or \(-ir\) and add \(-iendo\) (e.g. comiendo, viviendo).

What are the common irregular gerund patterns to watch out for?

Stem vowels changing to y to avoid triple vowels (e.g. leer → leyendo) and stem-changing \(-ir\) verbs changing o → u or e → i (e.g. durmiendo, pidiendo).

Which trigger words typically indicate the use of the imperfect rather than the preterite?

Words indicating repetition or habit, such as siempre, todos los días, a menudo, generalmente, cuando era joven, and mientras.

In an interrupted action sentence, which tense is used for the ongoing background action and which for the interrupting action?

The ongoing background action uses the imperfect (or imperfect continuous), while the sudden interrupting action uses the preterite.

Why is subject clarification often needed for 1st and 3rd person singular forms in the imperfect tense?

Because the yo and él/ella/usted forms share identical endings (e.g. yo hablaba and él hablaba), requiring subject pronouns to prevent ambiguity.

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