I may gain you may gain he may gain we may gain you may gain they may gain
V-ing form
I may be gaining you may be gaining he may be gaining we may be gaining you may be gaining they may be gaining
Perfect
I may have gained you may have gained he may have gained we may have gained you may have gained they may have gained
V-ing perfect
I may have been gaining you may have been gaining he may have been gaining we may have been gaining you may have been gaining they may have been gaining
Negation
Simple form
I may not gain you may not gain he may not gain we may not gain you may not gain they may not gain
V-ing form
I may not be gaining you may not be gaining he may not be gaining we may not be gaining you may not be gaining they may not be gaining
Perfect
I may not have gained you may not have gained he may not have gained we may not have gained you may not have gained they may not have gained
V-ing perfect
I may not have been gaining you may not have been gaining he may not have been gaining we may not have been gaining you may not have been gaining they may not have been gaining
Interrogative form
Simple form
may I gain? may you gain? may he gain? may we gain? may you gain? may they gain?
V-ing form
may I be gaining? may you be gaining? may he be gaining? may we be gaining? may you be gaining? may they be gaining?
Perfect
may I have gained? may you have gained? may he have gained? may we have gained? may you have gained? may they have gained?
V-ing perfect
may I have been gaining? may you have been gaining? may he have been gaining? may we have been gaining? may you have been gaining? may they have been gaining?
Interro-negative form
Simple form
may I not gain? may you not gain? may he not gain? may we not gain? may you not gain? may they not gain?
V-ing form
may I not be gaining? may you not be gaining? may he not be gaining? may we not be gaining? may you not be gaining? may they not be gaining?
Perfect
may I not have gained? may you not have gained? may he not have gained? may we not have gained? may you not have gained? may they not have gained?
V-ing perfect
may I not have been gaining? may you not have been gaining? may he not have been gaining? may we not have been gaining? may you not have been gaining? may they not have been gaining?