I may sell you may sell she may sell we may sell you may sell they may sell
V-ing form
I may be selling you may be selling she may be selling we may be selling you may be selling they may be selling
Perfect
I may have sold you may have sold she may have sold we may have sold you may have sold they may have sold
V-ing perfect
I may have been selling you may have been selling she may have been selling we may have been selling you may have been selling they may have been selling
Negation
Simple form
I may not sell you may not sell she may not sell we may not sell you may not sell they may not sell
V-ing form
I may not be selling you may not be selling she may not be selling we may not be selling you may not be selling they may not be selling
Perfect
I may not have sold you may not have sold she may not have sold we may not have sold you may not have sold they may not have sold
V-ing perfect
I may not have been selling you may not have been selling she may not have been selling we may not have been selling you may not have been selling they may not have been selling
Interrogative form
Simple form
may I sell? may you sell? may she sell? may we sell? may you sell? may they sell?
V-ing form
may I be selling? may you be selling? may she be selling? may we be selling? may you be selling? may they be selling?
Perfect
may I have sold? may you have sold? may she have sold? may we have sold? may you have sold? may they have sold?
V-ing perfect
may I have been selling? may you have been selling? may she have been selling? may we have been selling? may you have been selling? may they have been selling?
Interro-negative form
Simple form
may I not sell? may you not sell? may she not sell? may we not sell? may you not sell? may they not sell?
V-ing form
may I not be selling? may you not be selling? may she not be selling? may we not be selling? may you not be selling? may they not be selling?
Perfect
may I not have sold? may you not have sold? may she not have sold? may we not have sold? may you not have sold? may they not have sold?
V-ing perfect
may I not have been selling? may you not have been selling? may she not have been selling? may we not have been selling? may you not have been selling? may they not have been selling?