I may snuff you may snuff she may snuff we may snuff you may snuff they may snuff
V-ing form
I may be snuffing you may be snuffing she may be snuffing we may be snuffing you may be snuffing they may be snuffing
Perfect
I may have snuffed you may have snuffed she may have snuffed we may have snuffed you may have snuffed they may have snuffed
V-ing perfect
I may have been snuffing you may have been snuffing she may have been snuffing we may have been snuffing you may have been snuffing they may have been snuffing
Negation
Simple form
I may not snuff you may not snuff she may not snuff we may not snuff you may not snuff they may not snuff
V-ing form
I may not be snuffing you may not be snuffing she may not be snuffing we may not be snuffing you may not be snuffing they may not be snuffing
Perfect
I may not have snuffed you may not have snuffed she may not have snuffed we may not have snuffed you may not have snuffed they may not have snuffed
V-ing perfect
I may not have been snuffing you may not have been snuffing she may not have been snuffing we may not have been snuffing you may not have been snuffing they may not have been snuffing
Interrogative form
Simple form
may I snuff? may you snuff? may she snuff? may we snuff? may you snuff? may they snuff?
V-ing form
may I be snuffing? may you be snuffing? may she be snuffing? may we be snuffing? may you be snuffing? may they be snuffing?
Perfect
may I have snuffed? may you have snuffed? may she have snuffed? may we have snuffed? may you have snuffed? may they have snuffed?
V-ing perfect
may I have been snuffing? may you have been snuffing? may she have been snuffing? may we have been snuffing? may you have been snuffing? may they have been snuffing?
Interro-negative form
Simple form
may I not snuff? may you not snuff? may she not snuff? may we not snuff? may you not snuff? may they not snuff?
V-ing form
may I not be snuffing? may you not be snuffing? may she not be snuffing? may we not be snuffing? may you not be snuffing? may they not be snuffing?
Perfect
may I not have snuffed? may you not have snuffed? may she not have snuffed? may we not have snuffed? may you not have snuffed? may they not have snuffed?
V-ing perfect
may I not have been snuffing? may you not have been snuffing? may she not have been snuffing? may we not have been snuffing? may you not have been snuffing? may they not have been snuffing?