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