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