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Conjugation
Objective: Build the future perfect with the future simple of the auxiliary and a past participle, and apply it to sequencing and assumption.
| Auxiliary | Form | Example |
|---|---|---|
| avoir | j'aurai | J'aurai fini le rapport. |
| avoir | tu auras | Tu auras reçu la lettre. |
| avoir | il aura | Il aura oublié le rendez-vous. |
| être | je serai | Je serai parti avant midi. |
| être | elle sera | Elle sera venue avec nous. |
| être | ils seront | Ils seront arrivés à temps. |
An action completed before a future reference point requires the future perfect, while the passé composé reports an action already complete at the moment of speaking.
Aller takes the auxiliary être, so the future perfect is built on serai rather than aurai.
A bare future-perfect fragment built on the auxiliary avoir, ready to be paired with a temporal clause.
A bare future-perfect fragment built on the auxiliary être, with the participle agreeing with the feminine subject.
The action of finishing precedes the departure, and the future perfect appears in the temporal clause.
The auxiliary être builds the future perfect, and the participle agrees with the masculine singular subject.
The future perfect follows the conjunction dès que, and the main clause stays in the future simple.
7 exercises · about 11 minutes
Venir takes the auxiliary être, and the past participle agrees with the feminine subject, producing venue rather than the masculine venu.
Partir takes the auxiliary être, and the past participle agrees with the plural subject, producing partis with the plural ending -s.
The future perfect carries the assumption on its own, while peut-être with the passé composé weakens the firm tone the tense is meant to produce.
The assumption use draws a conclusion from evidence, and the future perfect replaces a modal adverb.
The assumption concerns a past event that the speaker did not witness but infers from the situation.
The action of arriving is complete at a future reference point, and the participle agrees with the plural subject.