I may black you may black he may black we may black you may black they may black
V-ing form
I may be blacking you may be blacking he may be blacking we may be blacking you may be blacking they may be blacking
Perfect
I may have blacked you may have blacked he may have blacked we may have blacked you may have blacked they may have blacked
V-ing perfect
I may have been blacking you may have been blacking he may have been blacking we may have been blacking you may have been blacking they may have been blacking
Negation
Simple form
I may not black you may not black he may not black we may not black you may not black they may not black
V-ing form
I may not be blacking you may not be blacking he may not be blacking we may not be blacking you may not be blacking they may not be blacking
Perfect
I may not have blacked you may not have blacked he may not have blacked we may not have blacked you may not have blacked they may not have blacked
V-ing perfect
I may not have been blacking you may not have been blacking he may not have been blacking we may not have been blacking you may not have been blacking they may not have been blacking
Interrogative form
Simple form
may I black? may you black? may he black? may we black? may you black? may they black?
V-ing form
may I be blacking? may you be blacking? may he be blacking? may we be blacking? may you be blacking? may they be blacking?
Perfect
may I have blacked? may you have blacked? may he have blacked? may we have blacked? may you have blacked? may they have blacked?
V-ing perfect
may I have been blacking? may you have been blacking? may he have been blacking? may we have been blacking? may you have been blacking? may they have been blacking?
Interro-negative form
Simple form
may I not black? may you not black? may he not black? may we not black? may you not black? may they not black?
V-ing form
may I not be blacking? may you not be blacking? may he not be blacking? may we not be blacking? may you not be blacking? may they not be blacking?
Perfect
may I not have blacked? may you not have blacked? may he not have blacked? may we not have blacked? may you not have blacked? may they not have blacked?
V-ing perfect
may I not have been blacking? may you not have been blacking? may he not have been blacking? may we not have been blacking? may you not have been blacking? may they not have been blacking?