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