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