Estropier belong to the 1
st group.
Estropier is conjugated the same way that verbs that end in :
-ier
Estropier is conjugated with
auxiliary avoir.
Estropier verb is
direct transitive.
French verb estropier can be conjugated in the reflexive form:
S'estropier
Estropier verb is a direct transitive verb, so passive voice can be used.