The Past Subjunctive - CliffsNotes
www.cliffsnotes.com › the-past-subjunctiveThe past subjunctive is formed by using the subjunctive of the helping verb ( avoir or être) + the past participle of the action being performed. The past subjunctive is used like the passé composé to express an action that has already taken place in the past: Il est regrettable qu'il n'ait pas réussi. (It is a shame that he didn't succeed.)