I may brush you may brush she may brush we may brush you may brush they may brush
V-ing form
I may be brushing you may be brushing she may be brushing we may be brushing you may be brushing they may be brushing
Perfect
I may have brushed you may have brushed she may have brushed we may have brushed you may have brushed they may have brushed
V-ing perfect
I may have been brushing you may have been brushing she may have been brushing we may have been brushing you may have been brushing they may have been brushing
Negation
Simple form
I may not brush you may not brush she may not brush we may not brush you may not brush they may not brush
V-ing form
I may not be brushing you may not be brushing she may not be brushing we may not be brushing you may not be brushing they may not be brushing
Perfect
I may not have brushed you may not have brushed she may not have brushed we may not have brushed you may not have brushed they may not have brushed
V-ing perfect
I may not have been brushing you may not have been brushing she may not have been brushing we may not have been brushing you may not have been brushing they may not have been brushing
Interrogative form
Simple form
may I brush? may you brush? may she brush? may we brush? may you brush? may they brush?
V-ing form
may I be brushing? may you be brushing? may she be brushing? may we be brushing? may you be brushing? may they be brushing?
Perfect
may I have brushed? may you have brushed? may she have brushed? may we have brushed? may you have brushed? may they have brushed?
V-ing perfect
may I have been brushing? may you have been brushing? may she have been brushing? may we have been brushing? may you have been brushing? may they have been brushing?
Interro-negative form
Simple form
may I not brush? may you not brush? may she not brush? may we not brush? may you not brush? may they not brush?
V-ing form
may I not be brushing? may you not be brushing? may she not be brushing? may we not be brushing? may you not be brushing? may they not be brushing?
Perfect
may I not have brushed? may you not have brushed? may she not have brushed? may we not have brushed? may you not have brushed? may they not have brushed?
V-ing perfect
may I not have been brushing? may you not have been brushing? may she not have been brushing? may we not have been brushing? may you not have been brushing? may they not have been brushing?