I may grunt you may grunt she may grunt we may grunt you may grunt they may grunt
V-ing form
I may be grunting you may be grunting she may be grunting we may be grunting you may be grunting they may be grunting
Perfect
I may have grunted you may have grunted she may have grunted we may have grunted you may have grunted they may have grunted
V-ing perfect
I may have been grunting you may have been grunting she may have been grunting we may have been grunting you may have been grunting they may have been grunting
Negation
Simple form
I may not grunt you may not grunt she may not grunt we may not grunt you may not grunt they may not grunt
V-ing form
I may not be grunting you may not be grunting she may not be grunting we may not be grunting you may not be grunting they may not be grunting
Perfect
I may not have grunted you may not have grunted she may not have grunted we may not have grunted you may not have grunted they may not have grunted
V-ing perfect
I may not have been grunting you may not have been grunting she may not have been grunting we may not have been grunting you may not have been grunting they may not have been grunting
Interrogative form
Simple form
may I grunt? may you grunt? may she grunt? may we grunt? may you grunt? may they grunt?
V-ing form
may I be grunting? may you be grunting? may she be grunting? may we be grunting? may you be grunting? may they be grunting?
Perfect
may I have grunted? may you have grunted? may she have grunted? may we have grunted? may you have grunted? may they have grunted?
V-ing perfect
may I have been grunting? may you have been grunting? may she have been grunting? may we have been grunting? may you have been grunting? may they have been grunting?
Interro-negative form
Simple form
may I not grunt? may you not grunt? may she not grunt? may we not grunt? may you not grunt? may they not grunt?
V-ing form
may I not be grunting? may you not be grunting? may she not be grunting? may we not be grunting? may you not be grunting? may they not be grunting?
Perfect
may I not have grunted? may you not have grunted? may she not have grunted? may we not have grunted? may you not have grunted? may they not have grunted?
V-ing perfect
may I not have been grunting? may you not have been grunting? may she not have been grunting? may we not have been grunting? may you not have been grunting? may they not have been grunting?