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 may not fish you may not fish he may not fish we may not fish you may not fish they may not fish
V-ing form
I may not be fishing you may not be fishing he may not be fishing we may not be fishing you may not be fishing they may not be fishing
Perfect
I may not have fished you may not have fished he may not have fished we may not have fished you may not have fished they may not have fished
V-ing perfect
I may not have been fishing you may not have been fishing he may not have been fishing we may not have been fishing you may not have been fishing they may not 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
may I not fish? may you not fish? may he not fish? may we not fish? may you not fish? may they not fish?
V-ing form
may I not be fishing? may you not be fishing? may he not be fishing? may we not be fishing? may you not be fishing? may they not be fishing?
Perfect
may I not have fished? may you not have fished? may he not have fished? may we not have fished? may you not have fished? may they not have fished?
V-ing perfect
may I not have been fishing? may you not have been fishing? may he not have been fishing? may we not have been fishing? may you not have been fishing? may they not have been fishing?