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