I may pen you may pen he may pen we may pen you may pen they may pen
V-ing form
I may be penning you may be penning he may be penning we may be penning you may be penning they may be penning
Perfect
I may have penned you may have penned he may have penned we may have penned you may have penned they may have penned
V-ing perfect
I may have been penning you may have been penning he may have been penning we may have been penning you may have been penning they may have been penning
Negation
Simple form
I mayn't pen you mayn't pen he mayn't pen we mayn't pen you mayn't pen they mayn't pen
V-ing form
I mayn't be penning you mayn't be penning he mayn't be penning we mayn't be penning you mayn't be penning they mayn't be penning
Perfect
I mayn't have penned you mayn't have penned he mayn't have penned we mayn't have penned you mayn't have penned they mayn't have penned
V-ing perfect
I mayn't have been penning you mayn't have been penning he mayn't have been penning we mayn't have been penning you mayn't have been penning they mayn't have been penning
Interrogative form
Simple form
may I pen? may you pen? may he pen? may we pen? may you pen? may they pen?
V-ing form
may I be penning? may you be penning? may he be penning? may we be penning? may you be penning? may they be penning?
Perfect
may I have penned? may you have penned? may he have penned? may we have penned? may you have penned? may they have penned?
V-ing perfect
may I have been penning? may you have been penning? may he have been penning? may we have been penning? may you have been penning? may they have been penning?
Interro-negative form
Simple form
mayn't I pen? mayn't you pen? mayn't he pen? mayn't we pen? mayn't you pen? mayn't they pen?
V-ing form
mayn't I be penning? mayn't you be penning? mayn't he be penning? mayn't we be penning? mayn't you be penning? mayn't they be penning?
Perfect
mayn't I have penned? mayn't you have penned? mayn't he have penned? mayn't we have penned? mayn't you have penned? mayn't they have penned?
V-ing perfect
mayn't I have been penning? mayn't you have been penning? mayn't he have been penning? mayn't we have been penning? mayn't you have been penning? mayn't they have been penning?