Future Perfect Tense French:

the future perfect tense is...

- a compound tense formed with the future of the auxiliary (avoir or être, see Auxiliaries) and the past participle.

when to use...

- is used to express a future action or event that will be completed before another future action or to describe a future action or event that will have been completed in the future.

how to form:

- The future perfect is formed using the future tense of the auxiliary avoir or être and the past participle of the main verb.

Future form of avoir:

aurai, aurais, aurait, aurions, auriez, auraient

Examples:

- j'aurai mangé
= i will have eaten

Future form of être:

serai, seras, sera, serons, serez, seront

Examples:

nous serons allés alle - we will have gone