I may prove you may prove he may prove we may prove you may prove they may prove
V-ing form
I may be proving you may be proving he may be proving we may be proving you may be proving they may be proving
Perfect
I may have proven you may have proven he 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 he 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 he 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 he 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 he 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 he 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 he prove? may we prove? may you prove? may they prove?
V-ing form
may I be proving? may you be proving? may he be proving? may we be proving? may you be proving? may they be proving?
Perfect
may I have proven? may you have proven? may he 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 he 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 he 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 he 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 he 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 he have been proving? mayn't we have been proving? mayn't you have been proving? mayn't they have been proving?