Other Standard -rir verbs
In past participle form, -ir is replaced with -ert for these verbs.
couvrir - to cover
découvrir - to discover
offrir - to offer
souffrir - to suffer
-rir Verb Exceptions
Courir - To Run
je cours
tu cours
il court
nous courons
vous courez
ils courent
past participle: couru
Mourir - To Die
je meurs
tu meurs
il meurt
nous mourons
vous mourez
ils meurent
past participle: mort(e)(s)1
1Mourir is the only -ir verb that takes être as its helping verb in perfect tenses (and therefore agrees with the subject as a past participle in a perfect tense).
Acquérir - To Acquire
j'acquiers
tu acquiers
il acquiert
nous acquérons
vous acquérez
ils acquièrent
past participle: acquis
V: Traffic Signs and Laws
G: Passé Composé with Être



Most verbs form the passé composé with avoir, however there are a small number of verbs that are always conjugated with être. In a general case, these verbs indicate a change in state or position.
List of Verbs
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Perfect Past with Être Passé composé avec être
Verb
Example
aller
Je suis allé au cinéma.
I went to the cinema.
venir
Je suis venu en France.
I came to France.
arriver
Le train est arrivé.
The train has arrived.