I may paper you may paper she may paper we may paper you may paper they may paper
V-ing form
I may be papering you may be papering she may be papering we may be papering you may be papering they may be papering
Perfect
I may have papered you may have papered she may have papered we may have papered you may have papered they may have papered
V-ing perfect
I may have been papering you may have been papering she may have been papering we may have been papering you may have been papering they may have been papering
Negation
Simple form
I may not paper you may not paper she may not paper we may not paper you may not paper they may not paper
V-ing form
I may not be papering you may not be papering she may not be papering we may not be papering you may not be papering they may not be papering
Perfect
I may not have papered you may not have papered she may not have papered we may not have papered you may not have papered they may not have papered
V-ing perfect
I may not have been papering you may not have been papering she may not have been papering we may not have been papering you may not have been papering they may not have been papering
Interrogative form
Simple form
may I paper? may you paper? may she paper? may we paper? may you paper? may they paper?
V-ing form
may I be papering? may you be papering? may she be papering? may we be papering? may you be papering? may they be papering?
Perfect
may I have papered? may you have papered? may she have papered? may we have papered? may you have papered? may they have papered?
V-ing perfect
may I have been papering? may you have been papering? may she have been papering? may we have been papering? may you have been papering? may they have been papering?
Interro-negative form
Simple form
may I not paper? may you not paper? may she not paper? may we not paper? may you not paper? may they not paper?
V-ing form
may I not be papering? may you not be papering? may she not be papering? may we not be papering? may you not be papering? may they not be papering?
Perfect
may I not have papered? may you not have papered? may she not have papered? may we not have papered? may you not have papered? may they not have papered?
V-ing perfect
may I not have been papering? may you not have been papering? may she not have been papering? may we not have been papering? may you not have been papering? may they not have been papering?