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