I may gain you may gain she may gain we may gain you may gain they may gain
V-ing form
I may be gaining you may be gaining she may be gaining we may be gaining you may be gaining they may be gaining
Perfect
I may have gained you may have gained she 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 she may have been gaining we may have been gaining you may have been gaining they may have been gaining
Negation
Simple form
I mayn't gain you mayn't gain she mayn't gain we mayn't gain you mayn't gain they mayn't gain
V-ing form
I mayn't be gaining you mayn't be gaining she mayn't be gaining we mayn't be gaining you mayn't be gaining they mayn't be gaining
Perfect
I mayn't have gained you mayn't have gained she mayn't have gained we mayn't have gained you mayn't have gained they mayn't have gained
V-ing perfect
I mayn't have been gaining you mayn't have been gaining she mayn't have been gaining we mayn't have been gaining you mayn't have been gaining they mayn't have been gaining
Interrogative form
Simple form
may I gain? may you gain? may she gain? may we gain? may you gain? may they gain?
V-ing form
may I be gaining? may you be gaining? may she be gaining? may we be gaining? may you be gaining? may they be gaining?
Perfect
may I have gained? may you have gained? may she 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 she have been gaining? may we have been gaining? may you have been gaining? may they have been gaining?
Interro-negative form
Simple form
mayn't I gain? mayn't you gain? mayn't she gain? mayn't we gain? mayn't you gain? mayn't they gain?
V-ing form
mayn't I be gaining? mayn't you be gaining? mayn't she be gaining? mayn't we be gaining? mayn't you be gaining? mayn't they be gaining?
Perfect
mayn't I have gained? mayn't you have gained? mayn't she have gained? mayn't we have gained? mayn't you have gained? mayn't they have gained?
V-ing perfect
mayn't I have been gaining? mayn't you have been gaining? mayn't she have been gaining? mayn't we have been gaining? mayn't you have been gaining? mayn't they have been gaining?