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