Accroître belong to the 3
rd group. Accroître is a common french verb.
Accroître is conjugated the same way that verbs that end in :
-oître
Accroître is conjugated with the two auxiliaries
être and
avoir.
Accroître verb is
direct transitive, indirect transitive.
French verb accroître can be conjugated in the reflexive form:
S'accroître
Accroître verb is a direct transitive verb, so passive voice can be used.
Attention: passive voice can only be used when accroître verb is conjugated with auxiliary avoir.