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