Desservir belong to the 3
rd group. Desservir is a common french verb.
Desservir is conjugated the same way that verbs that end in :
-vir
Desservir is conjugated with
auxiliary avoir.
Desservir verb is direct transitive.
French verb desservir can be conjugated in the reflexive form:
Desservir verb is a direct transitive verb, so ive voice can be used.