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 may not pen you may not pen he may not pen we may not pen you may not pen they may not pen
V-ing form
I may not be penning you may not be penning he may not be penning we may not be penning you may not be penning they may not be penning
Perfect
I may not have penned you may not have penned he may not have penned we may not have penned you may not have penned they may not have penned
V-ing perfect
I may not have been penning you may not have been penning he may not have been penning we may not have been penning you may not have been penning they may not 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
may I not pen? may you not pen? may he not pen? may we not pen? may you not pen? may they not pen?
V-ing form
may I not be penning? may you not be penning? may he not be penning? may we not be penning? may you not be penning? may they not be penning?
Perfect
may I not have penned? may you not have penned? may he not have penned? may we not have penned? may you not have penned? may they not have penned?
V-ing perfect
may I not have been penning? may you not have been penning? may he not have been penning? may we not have been penning? may you not have been penning? may they not have been penning?