Key facts

Prévenir

To warn · to warn/to inform

B1Irregular
Model
venir
Stem
préven
Past participle
prévenu

Examples

Je préviens Paul.

I warn Paul.

Il ne prévient pas maman.

He doesn't warn Mom.

Nous prévenions tout.

We were warning everyone.

Nous avons prévenu Lucie.

We warned Lucie.

This verb is highly irregular. Prioritize repetition and active recall.

Présent

Indicative present — everyday actions, ongoing situations, and habits; the tense you rely on most in conversation.

Group 3
Jepréviens
Iwarn
Tupréviens
Youwarn
Ilprévient
Hewarns
Nousprévenons
Wewarn
Vousprévenez
Youwarn
Ilspréviennent
Theywarn

Futur proche

Near future with aller + infinitive — what you are about to do, very soon after the moment of speaking.

Jevais prévenir
Iam going to warn
Tuvas prévenir
Youare going to warn
Ilva prévenir
Heis going to warn
Nousallons prévenir
Weare going to warn
Vousallez prévenir
Youare going to warn
Ilsvont prévenir
Theyare going to warn

Passé récent

Recent past with venir de + infinitive — something that has just finished, still fresh in the speaker’s mind.

Jeviens de prévenir
Ihave just warned
Tuviens de prévenir
Youhave just warned
Ilvient de prévenir
Hehas just warned
Nousvenons de prévenir
Wehave just warned
Vousvenez de prévenir
Youhave just warned
Ilsviennent de prévenir
Theyhave just warned

Passé composé

Compound past with être or avoir + past participle — completed, one-off events and the backbone of spoken storytelling.

J'ai prévenu
Ihave warned
Tuas prévenu
Youhave warned
Ila prévenu
Hehas warned
Nousavons prévenu
Wehave warned
Vousavez prévenu
Youhave warned
Ilsont prévenu
Theyhave warned

Conditionnel présent

Conditional mood — polite requests, imagined outcomes, and what would happen under certain conditions.

Jepréviendrais
Iwould warn
Tupréviendrais
Youwould warn
Ilpréviendrait
Hewould warn
Nouspréviendrions
Wewould warn
Vouspréviendriez
Youwould warn
Ilspréviendraient
Theywould warn

Futur simple

Simple future — often more formal or literary than the near future; states intentions farther ahead in time.

Jepréviendrai
Iwill warn
Tupréviendras
Youwill warn
Ilpréviendra
Hewill warn
Nouspréviendrons
Wewill warn
Vouspréviendrez
Youwill warn
Ilspréviendront
Theywill warn

Imparfait

Imperfect — repeated habits in the past, background description, and actions still in progress when something else occurred.

Jeprévenais
Iwas warning
Tuprévenais
Youwere warning
Ilprévenait
Hewas warning
Nousprévenions
Were warning
Vouspréveniez
Youwere warning
Ilsprévenaient
Theywere warning

Impératif présent

Present imperative — direct commands and friendly requests; only tu, nous, and vous person forms exist.

(Tu)préviens
Youwarn
(Nous)prévenons
Wewarn
(Vous)prévenez
Youwarn

Participe présent

Present participle — the -ant form in subordinate clauses, compound tenses, and many fixed expressions.

prévenant
warning

Gérondif présent

Gerund with en + present participle — simultaneous action, manner, or cause while something else is going on.

en prévenant
warning

Similar conjugation models (Irregular)

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