Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I may dam up you may dam up she may dam up we may dam up you may dam up they may dam up
V-ing form
I may be dam uping you may be dam uping she may be dam uping we may be dam uping you may be dam uping they may be dam uping
Perfect
I may have dam uped you may have dam uped she may have dam uped we may have dam uped you may have dam uped they may have dam uped
V-ing perfect
I may have been dam uping you may have been dam uping she may have been dam uping we may have been dam uping you may have been dam uping they may have been dam uping
Negation
Simple form
I may not dam up you may not dam up she may not dam up we may not dam up you may not dam up they may not dam up
V-ing form
I may not be dam uping you may not be dam uping she may not be dam uping we may not be dam uping you may not be dam uping they may not be dam uping
Perfect
I may not have dam uped you may not have dam uped she may not have dam uped we may not have dam uped you may not have dam uped they may not have dam uped
V-ing perfect
I may not have been dam uping you may not have been dam uping she may not have been dam uping we may not have been dam uping you may not have been dam uping they may not have been dam uping
Interrogative form
Simple form
may I dam up? may you dam up? may she dam up? may we dam up? may you dam up? may they dam up?
V-ing form
may I be dam uping? may you be dam uping? may she be dam uping? may we be dam uping? may you be dam uping? may they be dam uping?
Perfect
may I have dam uped? may you have dam uped? may she have dam uped? may we have dam uped? may you have dam uped? may they have dam uped?
V-ing perfect
may I have been dam uping? may you have been dam uping? may she have been dam uping? may we have been dam uping? may you have been dam uping? may they have been dam uping?
Interro-negative form
Simple form
may I not dam up? may you not dam up? may she not dam up? may we not dam up? may you not dam up? may they not dam up?
V-ing form
may I not be dam uping? may you not be dam uping? may she not be dam uping? may we not be dam uping? may you not be dam uping? may they not be dam uping?
Perfect
may I not have dam uped? may you not have dam uped? may she not have dam uped? may we not have dam uped? may you not have dam uped? may they not have dam uped?
V-ing perfect
may I not have been dam uping? may you not have been dam uping? may she not have been dam uping? may we not have been dam uping? may you not have been dam uping? may they not have been dam uping?