Forming the Pretérito Imperfecto

The Preterite Imperfect tense is formed by conjugating the verb with a specific set of endings, depending on the subject pronoun and the verb group (-ar, -er, or -ir verbs).

Regular -ar Verbs

For regular -ar verbs, remove the -ar ending, and add the following Imperfect endings:

Subject Pronoun	Ending	Example (Hablar)
yo	-aba	hablaba
tú	-abas	hablabas
él/ella/usted	-aba	hablaba
nosotros/nosotras	-ábamos	hablábamos
vosotros/vosotras	-abais	hablabais
ellos/ellas/ustedes	-aban	hablaban

Regular -er and -ir Verbs

For regular -er and -ir verbs, remove the -er or -ir ending, and add the following Imperfect endings:

Subject Pronoun	Ending	Example (Comer)	Example (Vivir)
yo	-ía	comía	vivía
tú	-ías	comías	vivías
él/ella/usted	-ía	comía	vivía
nosotros/nosotras	-íamos	comíamos	vivíamos
vosotros/vosotras	-íais	comíais	vivíais
ellos/ellas/ustedes	-ían	comían	vivían

Irregular Verbs in Pretérito Imperfecto

There are only three irregular verbs in the Pretérito Imperfecto: ser, ir, and ver. Here are their conjugations:

Subject Pronoun	Ser	Ir	Ver
yo	era	iba	veía
tú	eras	ibas	veías
él/ella/usted	era	iba	veía
nosotros/nosotras	éramos	íbamos	veíamos
vosotros/vosotras	erais	ibais	veíais
ellos/ellas/ustedes	eran	iban	veían

When to Use the Pretérito Imperfecto

The Pretérito Imperfecto is used in various scenarios:

1. Describing Past Habits and Repeated Actions

Use the Imperfect tense to describe habits or actions that were repeated in the past, without specifying the beginning or end.

• Cuando era niño, jugaba al fútbol todos los días. (When I was a child, I played soccer every day.)

2. Describing Simultaneous Past Actions

Use the Imperfect tense to describe two or more actions happening simultaneously in the past.

• Mientras yo estudiaba, mi hermano veía la televisión. (While I was studying, my brother was watching TV.)

3. Describing Ongoing Past Actions

Use the Imperfect tense to describe actions that were ongoing or in progress in the past.

• Ella leía un libro cuando sonó el teléfono. (She was reading a book when the phone rang.)

4. Describing Past Descriptions, Emotions, and States

Use the Imperfect tense to describe past situations, emotions, or states.

• La casa era grande y antigua. (The house was big and old.)

Practice Exercises

Now that you have a solid understanding of the Pretérito Imperfecto, it’s time to practice! Conjugate the following verbs in the Imperfect tense:

1. comer (yo)
2. hablar (nosotros)
3. vivir (tú)
4. ser (él)
5. ir (vosotros)

Conclusion

The Spanish Preterite Imperfect tense is an essential aspect of mastering the language, as it’s used to describe past habits, actions, and states. By following this comprehensive guide and practicing regularly, you’ll be well on your way to using the Pretérito Imperfecto with confidence and ease.