I may fish you may fish she may fish we may fish you may fish they may fish
V-ing form
I may be fishing you may be fishing she may be fishing we may be fishing you may be fishing they may be fishing
Perfect
I may have fished you may have fished she 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 she 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 she 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 she 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 she 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 she 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 she fish? may we fish? may you fish? may they fish?
V-ing form
may I be fishing? may you be fishing? may she be fishing? may we be fishing? may you be fishing? may they be fishing?
Perfect
may I have fished? may you have fished? may she 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 she 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 she 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 she 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 she 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 she have been fishing? mayn't we have been fishing? mayn't you have been fishing? mayn't they have been fishing?