Découdre belong to the 3
rd group. Découdre is a common french verb.
Découdre is conjugated the same way that verbs that end in :
-udre
Découdre is conjugated with
auxiliary avoir.
Découdre verb is
direct transitive.
French verb découdre can be conjugated in the reflexive form:
Se découdre
Découdre verb is a direct transitive verb, so passive voice can be used.