I may fart you may fart he may fart we may fart you may fart they may fart
V-ing form
I may be farting you may be farting he may be farting we may be farting you may be farting they may be farting
Perfect
I may have farted you may have farted he may have farted we may have farted you may have farted they may have farted
V-ing perfect
I may have been farting you may have been farting he may have been farting we may have been farting you may have been farting they may have been farting
Negation
Simple form
I mayn't fart you mayn't fart he mayn't fart we mayn't fart you mayn't fart they mayn't fart
V-ing form
I mayn't be farting you mayn't be farting he mayn't be farting we mayn't be farting you mayn't be farting they mayn't be farting
Perfect
I mayn't have farted you mayn't have farted he mayn't have farted we mayn't have farted you mayn't have farted they mayn't have farted
V-ing perfect
I mayn't have been farting you mayn't have been farting he mayn't have been farting we mayn't have been farting you mayn't have been farting they mayn't have been farting
Interrogative form
Simple form
may I fart? may you fart? may he fart? may we fart? may you fart? may they fart?
V-ing form
may I be farting? may you be farting? may he be farting? may we be farting? may you be farting? may they be farting?
Perfect
may I have farted? may you have farted? may he have farted? may we have farted? may you have farted? may they have farted?
V-ing perfect
may I have been farting? may you have been farting? may he have been farting? may we have been farting? may you have been farting? may they have been farting?
Interro-negative form
Simple form
mayn't I fart? mayn't you fart? mayn't he fart? mayn't we fart? mayn't you fart? mayn't they fart?
V-ing form
mayn't I be farting? mayn't you be farting? mayn't he be farting? mayn't we be farting? mayn't you be farting? mayn't they be farting?
Perfect
mayn't I have farted? mayn't you have farted? mayn't he have farted? mayn't we have farted? mayn't you have farted? mayn't they have farted?
V-ing perfect
mayn't I have been farting? mayn't you have been farting? mayn't he have been farting? mayn't we have been farting? mayn't you have been farting? mayn't they have been farting?