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