Étrécir belong to the 2
nd group.
Étrécir is conjugated the same way that verbs that end in :
-ir
Étrécir is conjugated with
auxiliary avoir.
Étrécir verb is direct transitive.
French verb étrécir can be conjugated in the reflexive form:
Étrécir verb is a direct transitive verb, so ive voice can be used.