French conjugation in past subjunctive

The past subjonctive or passé du subjonctif in french, is a compound tense, which means it has two parts:
  • the auxiliary verb in present subjonctive (either avoir or être)
  • the past participle of the main verb

Grammatical agreement

Like all French compound conjugations, the past subjonctive may be subject to grammatical agreement:
  • When the auxiliary verb is être, the past participle must agree with the subject, except for reflexive verbs (same rules as conjugation with auxiliary avoir) and invariable past participles.
  • When the auxiliary verb is avoir, the past participle must agree with its direct object when the direct object is placed before the verb.

Auxiliaries conjugation in present subjonctive

Here is the french conjugation of auxiliaries avoir and être in present subjonctive to compose past subjonctive.
Auxiliary Avoir
j' aie
tu aies
il / elle ait
nous ayons
vous ayez
ils / elles aient
Auxiliary Être
je sois
tu sois
il / elle soit
nous soyons
vous soyez
ils / elles soient