The imperfect subjunctive (congiuntivo imperfetto) is required when the verb in the dependent clause is in a past tense or the conditional. For conjugations of three regular verbs, see the table below.

Here are a few examples of the congiuntivo imperfetto:

Credevo che avessero ragione. (I thought they were right.)

Non era probabile che prendessimo una decisione. (It wasn't likely we would make a decision.)

Non c'era nessuno che ci capisse. (There was no one who understood us.)

Il razzismo era il peggior problema che ci fosse. (Racism was the worst problem there was.)