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