I may gridiron you may gridiron he may gridiron we may gridiron you may gridiron they may gridiron
V-ing form
I may be gridironing you may be gridironing he may be gridironing we may be gridironing you may be gridironing they may be gridironing
Perfect
I may have gridironed you may have gridironed he may have gridironed we may have gridironed you may have gridironed they may have gridironed
V-ing perfect
I may have been gridironing you may have been gridironing he may have been gridironing we may have been gridironing you may have been gridironing they may have been gridironing
Negation
Simple form
I may not gridiron you may not gridiron he may not gridiron we may not gridiron you may not gridiron they may not gridiron
V-ing form
I may not be gridironing you may not be gridironing he may not be gridironing we may not be gridironing you may not be gridironing they may not be gridironing
Perfect
I may not have gridironed you may not have gridironed he may not have gridironed we may not have gridironed you may not have gridironed they may not have gridironed
V-ing perfect
I may not have been gridironing you may not have been gridironing he may not have been gridironing we may not have been gridironing you may not have been gridironing they may not have been gridironing
Interrogative form
Simple form
may I gridiron? may you gridiron? may he gridiron? may we gridiron? may you gridiron? may they gridiron?
V-ing form
may I be gridironing? may you be gridironing? may he be gridironing? may we be gridironing? may you be gridironing? may they be gridironing?
Perfect
may I have gridironed? may you have gridironed? may he have gridironed? may we have gridironed? may you have gridironed? may they have gridironed?
V-ing perfect
may I have been gridironing? may you have been gridironing? may he have been gridironing? may we have been gridironing? may you have been gridironing? may they have been gridironing?
Interro-negative form
Simple form
may I not gridiron? may you not gridiron? may he not gridiron? may we not gridiron? may you not gridiron? may they not gridiron?
V-ing form
may I not be gridironing? may you not be gridironing? may he not be gridironing? may we not be gridironing? may you not be gridironing? may they not be gridironing?
Perfect
may I not have gridironed? may you not have gridironed? may he not have gridironed? may we not have gridironed? may you not have gridironed? may they not have gridironed?
V-ing perfect
may I not have been gridironing? may you not have been gridironing? may he not have been gridironing? may we not have been gridironing? may you not have been gridironing? may they not have been gridironing?