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