I may fight you may fight she may fight we may fight you may fight they may fight
V-ing form
I may be fighting you may be fighting she may be fighting we may be fighting you may be fighting they may be fighting
Perfect
I may have fought you may have fought she may have fought we may have fought you may have fought they may have fought
V-ing perfect
I may have been fighting you may have been fighting she may have been fighting we may have been fighting you may have been fighting they may have been fighting
Negation
Simple form
I mayn't fight you mayn't fight she mayn't fight we mayn't fight you mayn't fight they mayn't fight
V-ing form
I mayn't be fighting you mayn't be fighting she mayn't be fighting we mayn't be fighting you mayn't be fighting they mayn't be fighting
Perfect
I mayn't have fought you mayn't have fought she mayn't have fought we mayn't have fought you mayn't have fought they mayn't have fought
V-ing perfect
I mayn't have been fighting you mayn't have been fighting she mayn't have been fighting we mayn't have been fighting you mayn't have been fighting they mayn't have been fighting
Interrogative form
Simple form
may I fight? may you fight? may she fight? may we fight? may you fight? may they fight?
V-ing form
may I be fighting? may you be fighting? may she be fighting? may we be fighting? may you be fighting? may they be fighting?
Perfect
may I have fought? may you have fought? may she have fought? may we have fought? may you have fought? may they have fought?
V-ing perfect
may I have been fighting? may you have been fighting? may she have been fighting? may we have been fighting? may you have been fighting? may they have been fighting?
Interro-negative form
Simple form
mayn't I fight? mayn't you fight? mayn't she fight? mayn't we fight? mayn't you fight? mayn't they fight?
V-ing form
mayn't I be fighting? mayn't you be fighting? mayn't she be fighting? mayn't we be fighting? mayn't you be fighting? mayn't they be fighting?
Perfect
mayn't I have fought? mayn't you have fought? mayn't she have fought? mayn't we have fought? mayn't you have fought? mayn't they have fought?
V-ing perfect
mayn't I have been fighting? mayn't you have been fighting? mayn't she have been fighting? mayn't we have been fighting? mayn't you have been fighting? mayn't they have been fighting?