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📚 This is the overview. « devoir » is taught level by level — pick your CEFR level below for a full lesson (explanation, pronunciation, exercises & games).
The same verb grows with your level — from your first words to real native slang.
Five phrases with « devoir » — guess before the reveal. Practise with the free games → Open this short as a page — transcript included →
Devoir is the hardest-working modal in french verb conjugation, because one irregular verb covers four English ideas. Must / have to: je dois partir — obligation, the core meaning, always devoir + infinitive. To owe: tu me dois dix euros — the original sense (the noun le devoir, duty, and les devoirs, homework, both descend from it). Should: the conditionnel je devrais — softened obligation, the advice tense: tu devrais dormir (you should sleep). Probably: devoir marks deduction — il doit être fatigué = he must be tired / he’s probably tired. Same table, four jobs; the tense you pick IS the meaning, which makes devoir the clearest showcase of how mood works in the french verb system — and why the common verbs trio devoir-pouvoir-vouloir deserves early, joint study: together they conjugate politeness itself.
The forms, present first: je dois, tu dois, il doit, nous devons, vous devez, ils doivent — the oi/e/oi vowel dance of its cousins. Passé composé: j’ai dû, with a circumflex the Académie insists on (dû, but due/dus without) — meaning “had to” or “must have”: j’ai dû partir = I had to leave / I must have left, context deciding. Imparfait je devais (was supposed to), futur je devrai on the devr- stem, subjonctif que je doive, and no imperative at all — French does not order people to must, a small philosophical mercy in the grammar. The conditional past « j’aurais dû » — I should have — is the language’s official tense of regret, and the single most useful advanced form on this page: master it and you can editorialise your entire past. Aller drill: pair each tense with its meaning aloud (dois=must, devrais=should, ai dû=had to, aurais dû=should have) — four forms, four translations, one very productive table.
Dois = must (obligation now); devrais = should (advice, conditional). The gap between them is exactly the English must/should gap — tense as tone.
“I should have” — past conditional, the regret tense: j’aurais dû réserver (I should have booked). Its optimistic twin is « tu aurais pu » — you could have.
To distinguish it from the article du (de + le). Only the masculine singular participle takes the hat: dû, but due, dus, dues — one of French spelling’s tidiest rules.
Vous ___ payer maintenant. (devoir, present)
devez
Hier, j’___ travailler tard. (devoir, passé composé)
ai dû
Tu ___ étudier plus. (devoir, conditional (should))
devrais
Advice: vous ___ voir ce film ! (conditional)
devriez
Je te ___ combien ? (owe, present)
dois
Devoir · Vouloir · Pouvoir — Present tenseje ___ (Devoir — present)
dois
tu ___ (Devoir — passé composé)
as dû
il ___ (Devoir — imperfect)
devait
nous ___ (Devoir — future)
devrons
vous ___ (Devoir — conditional)
devriez
Go further: this chart is one small piece — get the full picture in our guide Master the present tense — the full beginner guide.
je dois, tu dois, il / elle doit, nous devons, vous devez, ils / elles doivent. Full charts for every tense are above, each form with audio.
dû — the passé composé is « j’ai dû ». Devoir uses avoir as its auxiliary verb.
« je devrai » — the future stem never changes across persons, only the endings do.
to have to / must. It is one of the essential French verbs — drill the present first, then the passé composé; those two tenses carry most conversations.
Games built from this exact page — turn what you just read into play:

« devoir » at every CEFR level — the tense, its forms and the mechanic that makes it stick. Practise it with the free games →