Nitrifier belong to the 1
st group.
Nitrifier is conjugated the same way that verbs that end in :
-ier
Nitrifier is conjugated with
auxiliary avoir.
Nitrifier verb is
direct transitive.
French verb nitrifier can be conjugated in the reflexive form:
Se nitrifier
Nitrifier verb is a direct transitive verb, so passive voice can be used.