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