I could gridiron you could gridiron he could gridiron we could gridiron you could gridiron they could gridiron
Forma con V-ing
I could be gridironing you could be gridironing he could be gridironing we could be gridironing you could be gridironing they could be gridironing
Perfecto
I could have gridironed you could have gridironed he could have gridironed we could have gridironed you could have gridironed they could have gridironed
Perfecto con V-ing
I could have been gridironing you could have been gridironing he could have been gridironing we could have been gridironing you could have been gridironing they could have been gridironing
Negación
Forma simple
I couldn't gridiron you couldn't gridiron he couldn't gridiron we couldn't gridiron you couldn't gridiron they couldn't gridiron
Forma con V-ing
I couldn't be gridironing you couldn't be gridironing he couldn't be gridironing we couldn't be gridironing you couldn't be gridironing they couldn't be gridironing
Perfecto
I couldn't have gridironed you couldn't have gridironed he couldn't have gridironed we couldn't have gridironed you couldn't have gridironed they couldn't have gridironed
Perfecto con V-ing
I couldn't have been gridironing you couldn't have been gridironing he couldn't have been gridironing we couldn't have been gridironing you couldn't have been gridironing they couldn't have been gridironing
Forma interrogativa
Forma simple
could I gridiron? could you gridiron? could he gridiron? could we gridiron? could you gridiron? could they gridiron?
Forma con V-ing
could I be gridironing? could you be gridironing? could he be gridironing? could we be gridironing? could you be gridironing? could they be gridironing?
Perfecto
could I have gridironed? could you have gridironed? could he have gridironed? could we have gridironed? could you have gridironed? could they have gridironed?
Perfecto con V-ing
could I have been gridironing? could you have been gridironing? could he have been gridironing? could we have been gridironing? could you have been gridironing? could they have been gridironing?
Forma interro-negativa
Forma simple
couldn't I gridiron? couldn't you gridiron? couldn't he gridiron? couldn't we gridiron? couldn't you gridiron? couldn't they gridiron?
Forma con V-ing
couldn't I be gridironing? couldn't you be gridironing? couldn't he be gridironing? couldn't we be gridironing? couldn't you be gridironing? couldn't they be gridironing?
Perfecto
couldn't I have gridironed? couldn't you have gridironed? couldn't he have gridironed? couldn't we have gridironed? couldn't you have gridironed? couldn't they have gridironed?
Perfecto con V-ing
couldn't I have been gridironing? couldn't you have been gridironing? couldn't he have been gridironing? couldn't we have been gridironing? couldn't you have been gridironing? couldn't they have been gridironing?