I may windsurf you may windsurf she may windsurf we may windsurf you may windsurf they may windsurf
V-ing form
I may be windsurfing you may be windsurfing she may be windsurfing we may be windsurfing you may be windsurfing they may be windsurfing
Perfect
I may have windsurfed you may have windsurfed she may have windsurfed we may have windsurfed you may have windsurfed they may have windsurfed
V-ing perfect
I may have been windsurfing you may have been windsurfing she may have been windsurfing we may have been windsurfing you may have been windsurfing they may have been windsurfing
Negation
Simple form
I may not windsurf you may not windsurf she may not windsurf we may not windsurf you may not windsurf they may not windsurf
V-ing form
I may not be windsurfing you may not be windsurfing she may not be windsurfing we may not be windsurfing you may not be windsurfing they may not be windsurfing
Perfect
I may not have windsurfed you may not have windsurfed she may not have windsurfed we may not have windsurfed you may not have windsurfed they may not have windsurfed
V-ing perfect
I may not have been windsurfing you may not have been windsurfing she may not have been windsurfing we may not have been windsurfing you may not have been windsurfing they may not have been windsurfing
Interrogative form
Simple form
may I windsurf? may you windsurf? may she windsurf? may we windsurf? may you windsurf? may they windsurf?
V-ing form
may I be windsurfing? may you be windsurfing? may she be windsurfing? may we be windsurfing? may you be windsurfing? may they be windsurfing?
Perfect
may I have windsurfed? may you have windsurfed? may she have windsurfed? may we have windsurfed? may you have windsurfed? may they have windsurfed?
V-ing perfect
may I have been windsurfing? may you have been windsurfing? may she have been windsurfing? may we have been windsurfing? may you have been windsurfing? may they have been windsurfing?
Interro-negative form
Simple form
may I not windsurf? may you not windsurf? may she not windsurf? may we not windsurf? may you not windsurf? may they not windsurf?
V-ing form
may I not be windsurfing? may you not be windsurfing? may she not be windsurfing? may we not be windsurfing? may you not be windsurfing? may they not be windsurfing?
Perfect
may I not have windsurfed? may you not have windsurfed? may she not have windsurfed? may we not have windsurfed? may you not have windsurfed? may they not have windsurfed?
V-ing perfect
may I not have been windsurfing? may you not have been windsurfing? may she not have been windsurfing? may we not have been windsurfing? may you not have been windsurfing? may they not have been windsurfing?