The future perfect: formation

The future perfect is a compound tense used to express an action that will take place before a second action.

Teacher explanation

What the futur antérieur expresses (and how to “feel” it)

Futur antérieur = an action that will be completed before another future moment.

English idea: “will have done” / “will have finished”.
French idea: you look at the future and say: by that time, it’s already done.

Time relationship	Typical French connectors	Meaning
Action A finished → then Action B	dès que, quand, une fois que, après que	“As soon as / once / when …, then …”
By a deadline in the future	avant, d’ici, pour + time	“by noon / by next week …”

Build it step by step (quick recipe)

Choose the auxiliary: avoir or être.
Put the auxiliary in the futur simple (aurai, auras… / serai, seras…).
Add the participe passé of the main verb.

Formula: futur simple of avoir/être + participe passé

Type	Pattern	Example
Most verbs	avoir + past participle	J’aurai fini.
Movement / change of state + pronominal verbs	être + past participle	Je serai arrivé(e).

Avoir or être? Choose fast (B1-friendly rule)

Avoir: default choice (the majority of verbs).
Être:
- movement / arrival / departure: aller, venir, arriver, partir, entrer, sortir…
- change of state: naître, mourir, devenir…
- pronominal verbs: se lever, se déplacer, s’installer…

Self-check: Can you say “I went/arrived/left” or “I became” or does the verb have se? → likely être.

Agreement: when the past participle changes form

With être, the past participle agrees with the subject:

Subject	Example with arriver
She	Elle sera arrivée.
They (all women)	Elles seront arrivées.
We (mixed group / default)	Nous serons arrivés.

With avoir, at this level you can usually keep it unchanged (agreement rules with direct objects can come later).

Word order: negation and common pitfalls

In the futur antérieur, the negation surrounds the auxiliary:

Correct: Je n’aurai pas fini avant midi.

Incorrect: ~~Je n’aurai fini pas avant midi.~~

With être, keep the same structure:

Je ne serai pas arrivé(e) à temps.

Typical sentence patterns you will reuse in conversation

Pattern	French model	Natural English meaning
As soon as… (then…)	Dès que nous aurons terminé, nous partirons.	As soon as we have finished, we’ll leave.
Once I’ve arrived…	Une fois que je serai arrivé(e), je vous appelle.	Once I’ve arrived, I’ll call you.
By + deadline	J’aurai envoyé le dossier avant 18 h.	I’ll have sent the file by 6 p.m.

Special use: futur antérieur used “alone” (not a mistake)

Sometimes French uses the futur antérieur without a second future action.

It expresses that something will be already achieved at a future point (often in predictions).

Example: Dans quelques années, ces artistes se seront fait connaître grâce aux galeries.

Meaning: In a few years, these artists will have become known thanks to galleries.

Mini self-check before you move on

Can I say it in English as “will have + past participle”?
Did I pick the right auxiliary (avoir vs être)?
If it’s être, did I add -e / -s / -es when needed?
In a negative sentence, is ne… pas around the auxiliary?

If all answers are “yes”, your futur antérieur is ready for use.

The future perfect is formed with the auxiliary "avoir" or "être" in the simple future + a past participle.
The auxiliary "avoir" is used for the majority of verbs.
The auxiliary "être" is used to indicate a change of place or state and for pronominal verbs.

Arriver (1er groupe) (To arrive (1st group))	Finir (2ème groupe) (To finish (2nd group))	Prendre (3ème groupe) (To take (3rd group))
Je serai arrivé (I will have arrived)	J'aurai fini (I will have finished)	J’aurai pris (I will have taken)
Tu seras arrivé (You will have arrived)	Tu auras fini (You will have finished)	Tu auras pris (You will have taken)
Il/Elle/On sera arrivé(e) (He/She/One/We will have arrived)	Il/Elle/On aura fini (He/She/One/We will have finished)	Il/Elle/On aura pris (He/She/One/We will have taken)
Nous serons arrivé(e)s (We will have arrived)	Nous aurons fini (We will have finished)	Nous aurons pris (We will have taken)
Vous serez arrivé(e)s (You will have arrived)	Vous aurez fini (You will have finished)	Vous aurez pris (You will have taken)
Ils/Elles seront arrivé(e)s (They will have arrived)	Ils/Elles auront fini (They will have finished)	Ils/Elles auront pris (They will have taken)

Exceptions!

The future perfect can be used on its own to express an action that will have been completed by that time. Example: Dans quelques années, les artistes se seront fait connaître grâce aux galeries d’art contemporaines.
Be careful to respect the word order in the negative sentence. Example: Je n'aurai pas fini la visite avant midi.

Exercise 1: Multiple choice

Instruction: Choose the correct answer

1. Dès que vous ____ acheté vos billets, nous entrerons dans la galerie d’art. Dès que vous aurez acheté vos billets, nous entrerons dans la galerie d’art.

2. Quand nous ____ fini la visite de la collection permanente, nous irons voir l’exposition temporaire. Quand nous aurons fini la visite de la collection permanente, nous irons voir l’exposition temporaire.

3. Tu ____ pris de photos dans la salle, alors le gardien ne te dira rien. Tu n’auras pas pris de photos dans la salle, alors le gardien ne te dira rien.

4. Une fois que je ____ arrivé au musée, je vous enverrai le plan de l’installation. Une fois que je serai arrivé au musée, je vous enverrai le plan de l’installation.

Exercise 2: Rewrite the phrases

Instruction: Rewrite each sentence in the future perfect (an action that will have been completed before a future time). Example: “Je termine le rapport avant midi” → “J’aurai terminé le rapport avant midi.”

Show/Hide translation

Je finis mon dossier avant la réunion de 14 h.

⇒ ____________________________________________________________________________________________________ Example
J’aurai fini mon dossier avant la réunion de 14 h.
(I will have finished my file before the 2 p.m. meeting.)
Nous arrivons à Lyon avant 19 h.

⇒ ____________________________________________________________________________________________________ Example
Nous serons arrivés à Lyon avant 19 h.
(We will have arrived in Lyon before 7 p.m.)
Tu prends le train de 7 h 45 avant d’aller au bureau.

⇒ ____________________________________________________________________________________________________ Example
Tu auras pris le train de 7 h 45 avant d’aller au bureau.
(You will have taken the 7:45 train before going to the office.)
Je n’ai pas fini la visite avant midi.

⇒ ____________________________________________________________________________________________________ Example
Je n’aurai pas fini la visite avant midi.
(I will not have finished the visit before noon.)

Exercise 3: Multiple Choice

Instruction: Choose the correct sentence in the future perfect.

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Duration	Per month	Total
1 month	€14.99	€14.99
3 months -47%	€8.00	€24.00
6 months -62%	€5.75	€34.50
12 months -75%	€3.79	€45.48
48 months -90%	€1.50	€72.00

Duration	Per month	Total
1 month	€14.99	€14.99
3 months -47%	€8.00	€24.00
6 months -62%	€5.75	€34.50
12 months -75%	€3.79	€45.48
48 months -90%	€1.50	€72.00

The future perfect: formation

What the futur antérieur expresses (and how to “feel” it)

Build it step by step (quick recipe)

Avoir or être? Choose fast (B1-friendly rule)

Agreement: when the past participle changes form

Word order: negation and common pitfalls

Typical sentence patterns you will reuse in conversation

Special use: futur antérieur used “alone” (not a mistake)

Mini self-check before you move on

Exercise 1: Multiple choice

Exercise 2: Rewrite the phrases

Exercise 3: Multiple Choice

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