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