Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may enthusiasm you may enthusiasm he may enthusiasm we may enthusiasm you may enthusiasm they may enthusiasm
V-ing form
I may be enthusiasming you may be enthusiasming he may be enthusiasming we may be enthusiasming you may be enthusiasming they may be enthusiasming
Perfect
I may have enthusiasmed you may have enthusiasmed he may have enthusiasmed we may have enthusiasmed you may have enthusiasmed they may have enthusiasmed
V-ing perfect
I may have been enthusiasming you may have been enthusiasming he may have been enthusiasming we may have been enthusiasming you may have been enthusiasming they may have been enthusiasming
Negation
Simple form
I may not enthusiasm you may not enthusiasm he may not enthusiasm we may not enthusiasm you may not enthusiasm they may not enthusiasm
V-ing form
I may not be enthusiasming you may not be enthusiasming he may not be enthusiasming we may not be enthusiasming you may not be enthusiasming they may not be enthusiasming
Perfect
I may not have enthusiasmed you may not have enthusiasmed he may not have enthusiasmed we may not have enthusiasmed you may not have enthusiasmed they may not have enthusiasmed
V-ing perfect
I may not have been enthusiasming you may not have been enthusiasming he may not have been enthusiasming we may not have been enthusiasming you may not have been enthusiasming they may not have been enthusiasming
Interrogative form
Simple form
may I enthusiasm? may you enthusiasm? may he enthusiasm? may we enthusiasm? may you enthusiasm? may they enthusiasm?
V-ing form
may I be enthusiasming? may you be enthusiasming? may he be enthusiasming? may we be enthusiasming? may you be enthusiasming? may they be enthusiasming?
Perfect
may I have enthusiasmed? may you have enthusiasmed? may he have enthusiasmed? may we have enthusiasmed? may you have enthusiasmed? may they have enthusiasmed?
V-ing perfect
may I have been enthusiasming? may you have been enthusiasming? may he have been enthusiasming? may we have been enthusiasming? may you have been enthusiasming? may they have been enthusiasming?
Interro-negative form
Simple form
may I not enthusiasm? may you not enthusiasm? may he not enthusiasm? may we not enthusiasm? may you not enthusiasm? may they not enthusiasm?
V-ing form
may I not be enthusiasming? may you not be enthusiasming? may he not be enthusiasming? may we not be enthusiasming? may you not be enthusiasming? may they not be enthusiasming?
Perfect
may I not have enthusiasmed? may you not have enthusiasmed? may he not have enthusiasmed? may we not have enthusiasmed? may you not have enthusiasmed? may they not have enthusiasmed?
V-ing perfect
may I not have been enthusiasming? may you not have been enthusiasming? may he not have been enthusiasming? may we not have been enthusiasming? may you not have been enthusiasming? may they not have been enthusiasming?