Spanish Imperfect (Past) Tense - Pretérito imperfecto

The imperfect tense or the pretérito imperfecto de indicativo, is a Spanish past tense. We use it to describe a past state, to emphasise the process or habitual repetition of an action, or to express one past action interrupted by another.

To form the imperfect of any regular -ar verb, you take off the -ar ending of the infinitive to form the stem and add the endings: -aba, -abas, -aba,-ábamos, -abais, -aban.

To form the imperfect of any regular -er or -ir verb, you take off the -er or -ir ending of the infinitive to form the stem and add the endings: -ía, -ías, -ía, -íamos, -íais, -ían.

ser, ir and ver are irregular in the imperfect tense.