Avant or devant? Time vs space

🎯 In one line: avant places things in time, devant places them in space. Chinese uses one word for both, which is where the error comes from: Je t'attends avant le cinéma means “I'll wait for you before the film”, not “outside the cinema”.

Why they get mixed up

• They look alike and sound even more alike: avant [a-vɑ̃] · devant [də-vɑ̃]. The whole difference is that little de at the front.
• The etymology helps: devant comes from de + ante (ante became avant) — “from the front of”, so it is inherently about position.

One dividing line

🔑 Quick test: if the sentence answers “when?” → avant; if it answers “where?” → devant.

Two axes, two pairs

• The compounds follow the same split: avant-hier (the day before yesterday) · après-demain (the day after tomorrow)
• Both also work on their own, as adverbs: Il est arrivé avant. (He got there first.) · Il marche devant. (He's walking ahead.)
• In writing you will also meet avant tout (above all) and en avant (forward).

The signature trap: which ones take de

1. avant + verb → avant de + infinitive

• ❌ Avant manger, je me lave les mains.
• ✅ Avant de manger, je me lave les mains. (I wash my hands before eating.)
• Before a noun there is no de: avant le cours · avant midi
• The mirror image works differently: après + verb takes the past infinitive — après avoir mangé (after eating). The full “preposition + infinitive” list is on the “Infinitive” page.

⚠️ avant de only works when both actions have the same subject: Avant de partir, je vérifie mon passeport. (I leave, I check → avant de) Avant qu'il parte, je vérifie son passeport. (he leaves, I check → avant que + subjunctive, B1, see “The subjunctive”)

2. devant / derrière + noun: never any de

• ❌ devant de la porte → ✅ devant la porte
• ❌ derrière de la maison → ✅ derrière la maison
• English in front of is what causes this: French has no of here.

3. But these always need de

⚠️ That de contracts with le / les: en face du cinéma · à côté des toilettes. See the “au / aux / du / des” page. ❌ en face de le cinéma · ❌ en face la gare — one de too many, one de missing.

4. Before a pronoun: use the stressed form

• ❌ devant je → ✅ devant moi · devant toi · devant lui / elle · devant nous
• Same for avant: avant moi · avant toi · avant eux

The full set of place words

🗣 Strung together they make a full description: Il y a un banc devant la maison, une voiture derrière, et un arbre à côté de la porte. (There's a bench in front of the house, a car behind it, and a tree next to the door.)

Three situations where it goes wrong

1. Arranging to meet

• ✅ Je t'attends devant le cinéma. (outside the entrance)
• ⚠️ Je t'attends avant le cinéma. Grammatical, but it means “before the film” — you have fixed a time, not a place.

2. Giving directions

• Tourne à gauche avant la banque. (turn before you reach the bank)
• Le bus s'arrête devant la banque. (right outside the bank)

3. Queues and turns

• Il est passé devant moi. (he went past me / he cut in front of me)
• Il est passé avant moi. (he went first — this is about order)
• Position takes devant, turn takes avant: Il y a trois personnes devant moi. · Je suis arrivé avant toi.

Shortcut

“When?” → avant. “Where?” → devant. avant/après is the time axis, devant/derrière the space axis. avant + verb needs de (avant de partir); devant + noun never takes one; but à côté / en face / près / loin / au milieu always keep their de, contracted to du / des. Before a pronoun, use the stressed form: devant moi.