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