I may sleep you may sleep he may sleep we may sleep you may sleep they may sleep
V-ing form
I may be sleeping you may be sleeping he may be sleeping we may be sleeping you may be sleeping they may be sleeping
Perfect
I may have slept you may have slept he may have slept we may have slept you may have slept they may have slept
V-ing perfect
I may have been sleeping you may have been sleeping he may have been sleeping we may have been sleeping you may have been sleeping they may have been sleeping
Negation
Simple form
I may not sleep you may not sleep he may not sleep we may not sleep you may not sleep they may not sleep
V-ing form
I may not be sleeping you may not be sleeping he may not be sleeping we may not be sleeping you may not be sleeping they may not be sleeping
Perfect
I may not have slept you may not have slept he may not have slept we may not have slept you may not have slept they may not have slept
V-ing perfect
I may not have been sleeping you may not have been sleeping he may not have been sleeping we may not have been sleeping you may not have been sleeping they may not have been sleeping
Interrogative form
Simple form
may I sleep? may you sleep? may he sleep? may we sleep? may you sleep? may they sleep?
V-ing form
may I be sleeping? may you be sleeping? may he be sleeping? may we be sleeping? may you be sleeping? may they be sleeping?
Perfect
may I have slept? may you have slept? may he have slept? may we have slept? may you have slept? may they have slept?
V-ing perfect
may I have been sleeping? may you have been sleeping? may he have been sleeping? may we have been sleeping? may you have been sleeping? may they have been sleeping?
Interro-negative form
Simple form
may I not sleep? may you not sleep? may he not sleep? may we not sleep? may you not sleep? may they not sleep?
V-ing form
may I not be sleeping? may you not be sleeping? may he not be sleeping? may we not be sleeping? may you not be sleeping? may they not be sleeping?
Perfect
may I not have slept? may you not have slept? may he not have slept? may we not have slept? may you not have slept? may they not have slept?
V-ing perfect
may I not have been sleeping? may you not have been sleeping? may he not have been sleeping? may we not have been sleeping? may you not have been sleeping? may they not have been sleeping?