I may chew you may chew he may chew we may chew you may chew they may chew
V-ing form
I may be chewing you may be chewing he may be chewing we may be chewing you may be chewing they may be chewing
Perfect
I may have chewed you may have chewed he may have chewed we may have chewed you may have chewed they may have chewed
V-ing perfect
I may have been chewing you may have been chewing he may have been chewing we may have been chewing you may have been chewing they may have been chewing
Negation
Simple form
I may not chew you may not chew he may not chew we may not chew you may not chew they may not chew
V-ing form
I may not be chewing you may not be chewing he may not be chewing we may not be chewing you may not be chewing they may not be chewing
Perfect
I may not have chewed you may not have chewed he may not have chewed we may not have chewed you may not have chewed they may not have chewed
V-ing perfect
I may not have been chewing you may not have been chewing he may not have been chewing we may not have been chewing you may not have been chewing they may not have been chewing
Interrogative form
Simple form
may I chew? may you chew? may he chew? may we chew? may you chew? may they chew?
V-ing form
may I be chewing? may you be chewing? may he be chewing? may we be chewing? may you be chewing? may they be chewing?
Perfect
may I have chewed? may you have chewed? may he have chewed? may we have chewed? may you have chewed? may they have chewed?
V-ing perfect
may I have been chewing? may you have been chewing? may he have been chewing? may we have been chewing? may you have been chewing? may they have been chewing?
Interro-negative form
Simple form
may I not chew? may you not chew? may he not chew? may we not chew? may you not chew? may they not chew?
V-ing form
may I not be chewing? may you not be chewing? may he not be chewing? may we not be chewing? may you not be chewing? may they not be chewing?
Perfect
may I not have chewed? may you not have chewed? may he not have chewed? may we not have chewed? may you not have chewed? may they not have chewed?
V-ing perfect
may I not have been chewing? may you not have been chewing? may he not have been chewing? may we not have been chewing? may you not have been chewing? may they not have been chewing?