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 mayn't snuff you mayn't snuff she mayn't snuff we mayn't snuff you mayn't snuff they mayn't snuff
V-ing form
I mayn't be snuffing you mayn't be snuffing she mayn't be snuffing we mayn't be snuffing you mayn't be snuffing they mayn't be snuffing
Perfect
I mayn't have snuffed you mayn't have snuffed she mayn't have snuffed we mayn't have snuffed you mayn't have snuffed they mayn't have snuffed
V-ing perfect
I mayn't have been snuffing you mayn't have been snuffing she mayn't have been snuffing we mayn't have been snuffing you mayn't have been snuffing they mayn't 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
mayn't I snuff? mayn't you snuff? mayn't she snuff? mayn't we snuff? mayn't you snuff? mayn't they snuff?
V-ing form
mayn't I be snuffing? mayn't you be snuffing? mayn't she be snuffing? mayn't we be snuffing? mayn't you be snuffing? mayn't they be snuffing?
Perfect
mayn't I have snuffed? mayn't you have snuffed? mayn't she have snuffed? mayn't we have snuffed? mayn't you have snuffed? mayn't they have snuffed?
V-ing perfect
mayn't I have been snuffing? mayn't you have been snuffing? mayn't she have been snuffing? mayn't we have been snuffing? mayn't you have been snuffing? mayn't they have been snuffing?