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avertir: Conjugation

The avertir conjugation tables below show how to form the French verb avertir according to tense and person. To listen to the pronunciation of a given tense of avertir, click on the loudspeaker icon at the bottom of the table. See the notes on the conjugation of avertir at the end of this page.

Present	Perfect
j' avertis tu avertis il/elle avertit nous avertissons vous avertissez ils/elles avertissent Pronounce these verb forms	j' ai averti tu as averti il/elle a averti nous avons averti vous avez averti ils/elles ont averti Pronounce these verb forms
Imperfect	Pluperfect
j' avertissais tu avertissais il/elle avertissait nous avertissions vous avertissiez ils/elles avertissaient Pronounce these verb forms	j' avais averti tu avais averti il/elle avait averti nous avions averti vous aviez averti ils/elles avaient averti Pronounce these verb forms
Future	Future-perfect
j' avertirai tu avertiras il/elle avertira nous avertirons vous avertirez ils/elles avertiront Pronounce these verb forms	j' aurai averti tu auras averti il/elle aura averti nous aurons averti vous aurez averti ils/elles auront averti Pronounce these verb forms
Conditional	Conditional perfect
j' avertirais tu avertirais il/elle avertirait nous avertirions vous avertiriez ils/elles avertiraient Pronounce these verb forms	j' aurais averti tu aurais averti il/elle aurait averti nous aurions averti vous auriez averti ils/elles auraient averti Pronounce these verb forms
Present subjunctive	Perfect subjunctive
j' avertisse tu avertisses il/elle avertisse nous avertissions vous avertissiez ils/elles avertissent Pronounce these verb forms	j' aie averti tu aies averti il/elle ait averti nous ayons averti vous ayez averti ils/elles aient averti Pronounce these verb forms
Past historic	Past anterior
j' avertis tu avertis il/elle avertit nous avertîmes vous avertîtes ils/elles avertirent Pronounce these verb forms	j' eus averti tu eus averti il/elle eut averti nous eûmes averti vous eûtes averti ils/elles eurent averti Pronounce these verb forms

This verb falls into the pattern commonly termed regular -ir verb. It is characterised by the consonant -ss- which appears before any ending beginning with a vowel (in the spelling) but not in the infinitive or past participle.

This is the pattern generally followed by verbs based on colours and some other common adjectives (such as (to turn red, blush), jaunir (to turn yellow), grandir (to grow), adoucir (to soften) etc. Many English verbs ending in -ish also have French counterparts ending in -ir and following this pattern (cf finir, polir, vernir (to varnish), abolir, ternir...

Around 300 verbs are reported to follow this pattern (Beescherelle (2006), la conjugaison pour tous). The category is marginally productive:

• On analogy with other verbs of the category, very occasional -ir neologisms are formed (cf amarsir);
• There is a very slight tendancy for irregular -ir verbs to "slip into" the regular -ir pattern. In educated usage, this happens in some senses for saillir and ressortir in some senses, and sometimes for the verb vêtir (Bescherelle, op cit, p. 27). Other non-standard forms occasionally found include vous bouillissez (instead of vous bouillez: see bouillir).