I may brake you may brake he may brake we may brake you may brake they may brake
V-ing form
I may be braking you may be braking he may be braking we may be braking you may be braking they may be braking
Perfect
I may have braked you may have braked he may have braked we may have braked you may have braked they may have braked
V-ing perfect
I may have been braking you may have been braking he may have been braking we may have been braking you may have been braking they may have been braking
Negation
Simple form
I may not brake you may not brake he may not brake we may not brake you may not brake they may not brake
V-ing form
I may not be braking you may not be braking he may not be braking we may not be braking you may not be braking they may not be braking
Perfect
I may not have braked you may not have braked he may not have braked we may not have braked you may not have braked they may not have braked
V-ing perfect
I may not have been braking you may not have been braking he may not have been braking we may not have been braking you may not have been braking they may not have been braking
Interrogative form
Simple form
may I brake? may you brake? may he brake? may we brake? may you brake? may they brake?
V-ing form
may I be braking? may you be braking? may he be braking? may we be braking? may you be braking? may they be braking?
Perfect
may I have braked? may you have braked? may he have braked? may we have braked? may you have braked? may they have braked?
V-ing perfect
may I have been braking? may you have been braking? may he have been braking? may we have been braking? may you have been braking? may they have been braking?
Interro-negative form
Simple form
may I not brake? may you not brake? may he not brake? may we not brake? may you not brake? may they not brake?
V-ing form
may I not be braking? may you not be braking? may he not be braking? may we not be braking? may you not be braking? may they not be braking?
Perfect
may I not have braked? may you not have braked? may he not have braked? may we not have braked? may you not have braked? may they not have braked?
V-ing perfect
may I not have been braking? may you not have been braking? may he not have been braking? may we not have been braking? may you not have been braking? may they not have been braking?