English verb conjugation
CAN GRIDIRON

Regular verb: gridiron - gridironed - gridironed

Affirmation

Simple form	V-ing form
I can gridiron you can gridiron he can gridiron we can gridiron you can gridiron they can gridiron	I can be gridironing you can be gridironing he can be gridironing we can be gridironing you can be gridironing they can be gridironing
Perfect	V-ing perfect
I can have gridironed you can have gridironed he can have gridironed we can have gridironed you can have gridironed they can have gridironed	I can have been gridironing you can have been gridironing he can have been gridironing we can have been gridironing you can have been gridironing they can have been gridironing

Negation

Simple form	V-ing form
I can't gridiron you can't gridiron he can't gridiron we can't gridiron you can't gridiron they can't gridiron	I can't be gridironing you can't be gridironing he can't be gridironing we can't be gridironing you can't be gridironing they can't be gridironing
Perfect	V-ing perfect
I can't have gridironed you can't have gridironed he can't have gridironed we can't have gridironed you can't have gridironed they can't have gridironed	I can't have been gridironing you can't have been gridironing he can't have been gridironing we can't have been gridironing you can't have been gridironing they can't have been gridironing

Interrogative form

Simple form	V-ing form
can I gridiron? can you gridiron? can he gridiron? can we gridiron? can you gridiron? can they gridiron?	can I be gridironing? can you be gridironing? can he be gridironing? can we be gridironing? can you be gridironing? can they be gridironing?
Perfect	V-ing perfect
can I have gridironed? can you have gridironed? can he have gridironed? can we have gridironed? can you have gridironed? can they have gridironed?	can I have been gridironing? can you have been gridironing? can he have been gridironing? can we have been gridironing? can you have been gridironing? can they have been gridironing?

Interro-negative form

Simple form	V-ing form
can't I gridiron? can't you gridiron? can't he gridiron? can't we gridiron? can't you gridiron? can't they gridiron?	can't I be gridironing? can't you be gridironing? can't he be gridironing? can't we be gridironing? can't you be gridironing? can't they be gridironing?
Perfect	V-ing perfect
can't I have gridironed? can't you have gridironed? can't he have gridironed? can't we have gridironed? can't you have gridironed? can't they have gridironed?	can't I have been gridironing? can't you have been gridironing? can't he have been gridironing? can't we have been gridironing? can't you have been gridironing? can't they have been gridironing?