I could still you could still she could still we could still you could still they could still
Forma com V-ing
I could be stilling you could be stilling she could be stilling we could be stilling you could be stilling they could be stilling
Perfeito
I could have stilled you could have stilled she could have stilled we could have stilled you could have stilled they could have stilled
Perfeito com V-ing
I could have been stilling you could have been stilling she could have been stilling we could have been stilling you could have been stilling they could have been stilling
Negação
Forma simple
I couldn't still you couldn't still she couldn't still we couldn't still you couldn't still they couldn't still
Forma com V-ing
I couldn't be stilling you couldn't be stilling she couldn't be stilling we couldn't be stilling you couldn't be stilling they couldn't be stilling
Perfeito
I couldn't have stilled you couldn't have stilled she couldn't have stilled we couldn't have stilled you couldn't have stilled they couldn't have stilled
Perfeito com V-ing
I couldn't have been stilling you couldn't have been stilling she couldn't have been stilling we couldn't have been stilling you couldn't have been stilling they couldn't have been stilling
Forma interrogativa
Forma simple
could I still? could you still? could she still? could we still? could you still? could they still?
Forma com V-ing
could I be stilling? could you be stilling? could she be stilling? could we be stilling? could you be stilling? could they be stilling?
Perfeito
could I have stilled? could you have stilled? could she have stilled? could we have stilled? could you have stilled? could they have stilled?
Perfeito com V-ing
could I have been stilling? could you have been stilling? could she have been stilling? could we have been stilling? could you have been stilling? could they have been stilling?
Forma interro-Negação
Forma simple
couldn't I still? couldn't you still? couldn't she still? couldn't we still? couldn't you still? couldn't they still?
Forma com V-ing
couldn't I be stilling? couldn't you be stilling? couldn't she be stilling? couldn't we be stilling? couldn't you be stilling? couldn't they be stilling?
Perfeito
couldn't I have stilled? couldn't you have stilled? couldn't she have stilled? couldn't we have stilled? couldn't you have stilled? couldn't they have stilled?
Perfeito com V-ing
couldn't I have been stilling? couldn't you have been stilling? couldn't she have been stilling? couldn't we have been stilling? couldn't you have been stilling? couldn't they have been stilling?