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