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Verb conjugation

authentiquer

to authenticate

Usage

A dated, narrowly legal verb meaning to render a document authentic by completing the required legal formalities — distinct from the everyday authentifier, which just means 'to confirm as genuine.' Almost entirely replaced by authentifier even in legal French today.

Examples
  • Le notaire authentique l'acte de vente.The notary formalizes the deed of sale.
  • Cet acte doit être authentiqué par un officier public.This deed must be formalized by a public officer.
  • Le terme authentiquer est aujourd'hui vieilli.The term 'authentiquer' is now dated.
Common mistake

Even lawyers usually reach for authentifier today — authentiquer is considered old-fashioned and mostly appears in older legal texts or dictionaries, not everyday legal drafting.

Often confused with authentifier.

Simple tenses

Present

jeauthentique
tuauthentiques
il/elleauthentique
nousauthentiquons
vousauthentiquez
ils/ellesauthentiquent

Imperfect

jeauthentiquais
tuauthentiquais
il/elleauthentiquait
nousauthentiquions
vousauthentiquiez
ils/ellesauthentiquaient

Past historic (passé simple)

jeauthentiquai
tuauthentiquas
il/elleauthentiqua
nousauthentiquâmes
vousauthentiquâtes
ils/ellesauthentiquèrent

Future

jeauthentiquerai
tuauthentiqueras
il/elleauthentiquera
nousauthentiquerons
vousauthentiquerez
ils/ellesauthentiqueront

Conditional

jeauthentiquerais
tuauthentiquerais
il/elleauthentiquerait
nousauthentiquerions
vousauthentiqueriez
ils/ellesauthentiqueraient

Subjunctive

jeauthentique
tuauthentiques
il/elleauthentique
nousauthentiquions
vousauthentiquiez
ils/ellesauthentiquent

Subjunctive (imperfect)

jeauthentiquasse
tuauthentiquasses
il/elleauthentiquât
nousauthentiquassions
vousauthentiquassiez
ils/ellesauthentiquassent

Imperative

tuauthentique
nousauthentiquons
vousauthentiquez

Compound tenses

Passé composé

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

Plus-que-parfait

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

Passé antérieur

jeeus authentiqué
tueus authentiqué
il/elleeut authentiqué
nouseûmes authentiqué
vouseûtes authentiqué
ils/elleseurent authentiqué

Futur antérieur

jeaurai authentiqué
tuauras authentiqué
il/elleaura authentiqué
nousaurons authentiqué
vousaurez authentiqué
ils/ellesauront authentiqué

Conditionnel passé

jeaurais authentiqué
tuaurais authentiqué
il/elleaurait authentiqué
nousaurions authentiqué
vousauriez authentiqué
ils/ellesauraient authentiqué

Subjonctif passé

jeaie authentiqué
tuaies authentiqué
il/elleait authentiqué
nousayons authentiqué
vousayez authentiqué
ils/ellesaient authentiqué

Subjonctif plus-que-parfait

jeeusse authentiqué
tueusses authentiqué
il/elleeût authentiqué
nouseussions authentiqué
vouseussiez authentiqué
ils/elleseussent authentiqué

Impératif passé

tuaie authentiqué
nousayons authentiqué
vousayez authentiqué

Other

Present participle

authentiquant

Past participle

authentiqué

Infinitive

authentiquer

Want to practice? Try a conjugation exercise.

Frequently asked questions

What does "authentiquer" mean?

"authentiquer" means "to authenticate".

How do you conjugate "authentiquer" in the present tense?

The present of "authentiquer" is: je authentique, tu authentiques, il/elle authentique, nous authentiquons, vous authentiquez, ils/elles authentiquent.

What is the Passé composé of "authentiquer"?

The passé composé of "authentiquer" is: je ai authentiqué, tu as authentiqué, il/elle a authentiqué, nous avons authentiqué, vous avez authentiqué, ils/elles ont authentiqué.

What is the Imperative of "authentiquer"?

The imperative of "authentiquer" is: tu authentique, nous authentiquons, vous authentiquez.