I could double you could double he could double we could double you could double they could double
Forma com V-ing
I could be doubling you could be doubling he could be doubling we could be doubling you could be doubling they could be doubling
Perfeito
I could have doubled you could have doubled he could have doubled we could have doubled you could have doubled they could have doubled
Perfeito com V-ing
I could have been doubling you could have been doubling he could have been doubling we could have been doubling you could have been doubling they could have been doubling
Negação
Forma simple
I couldn't double you couldn't double he couldn't double we couldn't double you couldn't double they couldn't double
Forma com V-ing
I couldn't be doubling you couldn't be doubling he couldn't be doubling we couldn't be doubling you couldn't be doubling they couldn't be doubling
Perfeito
I couldn't have doubled you couldn't have doubled he couldn't have doubled we couldn't have doubled you couldn't have doubled they couldn't have doubled
Perfeito com V-ing
I couldn't have been doubling you couldn't have been doubling he couldn't have been doubling we couldn't have been doubling you couldn't have been doubling they couldn't have been doubling
Forma interrogativa
Forma simple
could I double? could you double? could he double? could we double? could you double? could they double?
Forma com V-ing
could I be doubling? could you be doubling? could he be doubling? could we be doubling? could you be doubling? could they be doubling?
Perfeito
could I have doubled? could you have doubled? could he have doubled? could we have doubled? could you have doubled? could they have doubled?
Perfeito com V-ing
could I have been doubling? could you have been doubling? could he have been doubling? could we have been doubling? could you have been doubling? could they have been doubling?
Forma interro-Negação
Forma simple
couldn't I double? couldn't you double? couldn't he double? couldn't we double? couldn't you double? couldn't they double?
Forma com V-ing
couldn't I be doubling? couldn't you be doubling? couldn't he be doubling? couldn't we be doubling? couldn't you be doubling? couldn't they be doubling?
Perfeito
couldn't I have doubled? couldn't you have doubled? couldn't he have doubled? couldn't we have doubled? couldn't you have doubled? couldn't they have doubled?
Perfeito com V-ing
couldn't I have been doubling? couldn't you have been doubling? couldn't he have been doubling? couldn't we have been doubling? couldn't you have been doubling? couldn't they have been doubling?