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