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French · Verb · #155 most common

avertir

to warn
to alert

Regular2nd ending

In the tables below, the stem is shown in black and the ending in purple.

1.

Présent

Current actions, habits, and general truths.

jeavertis
tuavertis
il/elleavertit
nousavertissons
vousavertissez
ils/ellesavertissent

Je t'avertis de ne pas sortir ce soir.

I warn you not to go out tonight.

Elle avertit ses amis de l'arrivée du train.

She warns her friends about the arrival of the train.

2.

Passé Composé

Completed past actions with present relevance.

jeai averti
tuas averti
il/ellea averti
nousavons averti
vousavez averti
ils/ellesont averti

Il a averti le directeur de la situation.

He warned the director about the situation.

Nous avons averti nos voisins du bruit.

We warned our neighbors about the noise.

3.

Imparfait

Ongoing or habitual past actions, descriptions, and background.

jeavertissais
tuavertissais
il/elleavertissait
nousavertissions
vousavertissiez
ils/ellesavertissaient

Quand j'étais jeune, je l'avertissais toujours.

When I was young, I always warned him.

Elle avertissait souvent ses collègues des changements.

She often warned her colleagues about the changes.

4.

Futur Simple

Future events, promises, and formal predictions.

jeavertirai
tuavertiras
il/elleavertira
nousavertirons
vousavertirez
ils/ellesavertiront

Je t'avertirai dès que j'aurai des nouvelles.

I will warn you as soon as I have news.

Ils avertiront les passagers avant le départ.

They will warn the passengers before departure.

5.

Conditionnel Présent

Hypothetical outcomes, polite requests, and reported future.

jeavertirais
tuavertirais
il/elleavertirait
nousavertirions
vousavertiriez
ils/ellesavertiraient

Je t'avertirais si je savais quelque chose.

I would warn you if I knew something.

Elle avertirait ses amis s'ils avaient besoin d'aide.

She would warn her friends if they needed help.

6.

Subjonctif Présent

Doubt, desire, necessity, and emotion in subordinate clauses.

jeavertisse
tuavertisses
il/elleavertisse
nousavertissions
vousavertissiez
ils/ellesavertissent

Il faut que je t'avertisse de ce danger.

I need to warn you about this danger.

Il est important qu'elle avertisse les autres.

It is important that she warns the others.

7.

Plus-que-parfait

Actions completed before another past action.

jeavais averti
tuavais averti
il/elleavait averti
nousavions averti
vousaviez averti
ils/ellesavaient averti

J'avais averti tout le monde avant l'accident.

I had warned everyone before the accident.

Ils avaient déjà averti la police de la situation.

They had already warned the police about the situation.

"avertir" in other languages

Related verbs

Common questions
Is "avertir" regular or irregular in French?
"avertir" is a regular 2nd verb in French. It follows the standard conjugation pattern for 2nd verbs.
How do you conjugate "avertir" in the present tense?
In the Présent, "avertir" conjugates as: avertis, avertis, avertissons, and more. See the full table above.
What is the past tense of "avertir" in French?
In the Passé Composé, "avertir" conjugates as: ai averti, as averti, avons averti, and more. See the full table above.
How common is "avertir" in French?
"avertir" (to warn, to alert) is one of the most commonly used verbs in French.