Coincer belong to the 1
st group. Coincer is a common french verb.
Coincer is conjugated the same way that verbs that end in :
-cer
Coincer is conjugated with
auxiliary avoir.
Coincer verb is
direct transitive.
French verb coincer can be conjugated in the reflexive form:
Se coincer
Coincer verb is a direct transitive verb, so passive voice can be used.