The document discusses the imperfect tense in Spanish, which is used to describe actions without a clear beginning or end, often habitual actions in the past. It provides examples of how the imperfect is used, such as "generalmente caminaban mucho" (they would generally walk a lot). It then lists the forms of -ar verbs in the imperfect tense and notes that three verbs - ir, ser, and ver - are irregular in the imperfect.

1. Spanish 3 Unit 1