Le Futur Antérieur (The Future Perfect Tense)
The futur antérieur is the French equivalent of the English future perfect (will have + past participle). It describes an action that will be completed before another future action or a specific point in the future. It can also be used to express a supposition or probability about a past event.
When to Use the Futur Antérieur
1. An Action Completed Before Another Future Action
Use the futur antérieur when one future action will be finished before another future action begins.
Examples
Quand tu arriveras, j’aurai déjà préparé le dîner.
When you arrive, I will already have prepared dinner.
Lorsque nous aurons terminé le projet, nous partirons en vacances.
When we have finished the project, we will go on vacation.
Dès qu’elle aura fini ses devoirs, elle regardera un film.
As soon as she has finished her homework, she will watch a movie.
2. An Action Completed Before a Specific Time
Use the futur antérieur to indicate that something will be finished by a particular moment in the future.
Examples
À midi, nous aurons terminé la réunion.
By noon, we will have finished the meeting.
D’ici demain, ils auront réparé la voiture.
By tomorrow, they will have repaired the car.
Dans un mois, j’aurai terminé mon cours de français.
In one month, I will have finished my French course.
3. To Express a Supposition About the Past
The futur antérieur can also express a probable explanation about something that has already happened.
Examples
Il aura oublié notre rendez-vous.
He must have forgotten our appointment.
Elle sera partie très tôt ce matin.
She must have left very early this morning.
Ils auront pris le mauvais train.
They must have taken the wrong train.
4. After Certain Time Conjunctions
The futur antérieur is commonly used after conjunctions that introduce a completed future action.
Common conjunctions include:
- quand – when
- lorsque – when
- dès que – as soon as
- aussitôt que – as soon as
- après que – after
Examples
Après que tu auras lu ce livre, prête-le-moi.
After you have read this book, lend it to me.
Lorsque nous nous serons installés, nous commencerons la réunion.
When we have settled in, we will begin the meeting.
How to Form the Futur Antérieur
The futur antérieur is formed with:
Future Simple of avoir or être + Past Participle
Formula
Subject + avoir / être (future simple) + past participle
Examples
- J’aurai mangé. (I will have eaten.)
- Tu auras fini. (You will have finished.)
- Elle sera partie. (She will have left.)
Choosing the Auxiliary Verb
Most Verbs Use Avoir
Examples:
- J’aurai parlé avec mon professeur.
- Nous aurons acheté une maison.
- Ils auront compris la leçon.
Movement and Reflexive Verbs Use Être
Examples:
- Elle sera arrivée avant midi.
- Nous serons partis à huit heures.
- Je me serai levé tôt.
When être is used, the past participle agrees with the subject in gender and number.
Examples:
- Il sera allé.
- Elle sera allée.
- Ils seront allés.
- Elles seront allées.
Conjugation Examples
Parler (to speak)
| Subject | Conjugation |
|---|---|
| J’ | aurai parlé |
| Tu | auras parlé |
| Il / Elle / On | aura parlé |
| Nous | aurons parlé |
| Vous | aurez parlé |
| Ils / Elles | auront parlé |
Finir (to finish)
| Subject | Conjugation |
| J’ | aurai fini |
| Tu | auras fini |
| Il / Elle / On | aura fini |
| Nous | aurons fini |
| Vous | aurez fini |
| Ils / Elles | auront fini |
Partir (to leave)
| Subject | Conjugation |
| Je | serai parti(e) |
| Tu | seras parti(e) |
| Il / Elle / On | sera parti(e) |
| Nous | serons parti(e)s |
| Vous | serez parti(e)(s) |
| Ils / Elles | seront partis / parties |
Negative Sentences
Place ne…pas around the auxiliary verb.
Examples
Je n’aurai pas terminé avant ce soir.
I will not have finished before this evening.
Elle ne sera pas arrivée à temps.
She will not have arrived on time.
Nous ne nous serons pas trompés.
We will not have made a mistake.
Questions
Examples
Auras-tu fini ton travail avant midi ?
Will you have finished your work by noon?
Seront-ils arrivés avant nous ?
Will they have arrived before us?
Pourquoi sera-t-elle partie si tôt ?
Why will she have left so early?
Common Time Expressions
The futur antérieur is often used with:
| French | English |
| d’ici | by |
| avant | before |
| avant que | before |
| quand | when |
| lorsque | when |
| dès que | as soon as |
| aussitôt que | as soon as |
| après que | after |
| à ce moment-là | by that time |
Examples
- D’ici vendredi, nous aurons terminé le projet.
- Quand vous serez arrivés, téléphonez-moi.
Futur Antérieur vs Futur Simple
| Futur Antérieur | Futur Simple |
| Action completed before another future action | Future action |
| J’aurai fini avant ton arrivée. | Je finirai demain. |
| Elle sera rentrée avant minuit. | Elle rentrera demain. |
Story Example
French
Demain, nous partirons très tôt. Avant huit heures, nous aurons préparé nos bagages et nous aurons pris le petit-déjeuner. Lorsque nous serons arrivés à l’aéroport, nous enregistrerons nos valises. Après que l’avion aura décollé, nous pourrons enfin nous détendre.
English
Tomorrow, we will leave very early. Before eight o’clock, we will have packed our luggage and eaten breakfast. When we have arrived at the airport, we will check in our bags. After the plane has taken off, we will finally be able to relax.
Analysis
| Verb | Tense | Reason |
| partirons | Futur simple | Main future action |
| aurons préparé | Futur antérieur | Completed before leaving |
| aurons pris | Futur antérieur | Completed before leaving |
| serons arrivés | Futur antérieur | Completed before checking in |
| enregistrerons | Futur simple | Future action |
| aura décollé | Futur antérieur | Completed before relaxing |
| pourrons | Futur simple | Future result |
Quick Tips
Use the futur antérieur when:
- ✔ An action will be completed before another future action.
- ✔ Something will be finished by a specific future time.
- ✔ Making a logical assumption about a past event.
- ✔ Using time expressions such as quand, dès que, or après que to refer to a completed future action.
Summary
The futur antérieur is used to express future actions that will be completed before another future event or before a specific point in time. It is formed with the future simple of avoir or être followed by the past participle of the main verb. It can also express probability or supposition about a past event. Mastering the futur antérieur allows you to describe sequences of future events accurately and naturally in French.