I may stammer you may stammer she may stammer we may stammer you may stammer they may stammer
V-ing form
I may be stammering you may be stammering she may be stammering we may be stammering you may be stammering they may be stammering
Perfect
I may have stammered you may have stammered she may have stammered we may have stammered you may have stammered they may have stammered
V-ing perfect
I may have been stammering you may have been stammering she may have been stammering we may have been stammering you may have been stammering they may have been stammering
Negation
Simple form
I may not stammer you may not stammer she may not stammer we may not stammer you may not stammer they may not stammer
V-ing form
I may not be stammering you may not be stammering she may not be stammering we may not be stammering you may not be stammering they may not be stammering
Perfect
I may not have stammered you may not have stammered she may not have stammered we may not have stammered you may not have stammered they may not have stammered
V-ing perfect
I may not have been stammering you may not have been stammering she may not have been stammering we may not have been stammering you may not have been stammering they may not have been stammering
Interrogative form
Simple form
may I stammer? may you stammer? may she stammer? may we stammer? may you stammer? may they stammer?
V-ing form
may I be stammering? may you be stammering? may she be stammering? may we be stammering? may you be stammering? may they be stammering?
Perfect
may I have stammered? may you have stammered? may she have stammered? may we have stammered? may you have stammered? may they have stammered?
V-ing perfect
may I have been stammering? may you have been stammering? may she have been stammering? may we have been stammering? may you have been stammering? may they have been stammering?
Interro-negative form
Simple form
may I not stammer? may you not stammer? may she not stammer? may we not stammer? may you not stammer? may they not stammer?
V-ing form
may I not be stammering? may you not be stammering? may she not be stammering? may we not be stammering? may you not be stammering? may they not be stammering?
Perfect
may I not have stammered? may you not have stammered? may she not have stammered? may we not have stammered? may you not have stammered? may they not have stammered?
V-ing perfect
may I not have been stammering? may you not have been stammering? may she not have been stammering? may we not have been stammering? may you not have been stammering? may they not have been stammering?