I could grimace you could grimace she could grimace we could grimace you could grimace they could grimace
Forma com V-ing
I could be grimacing you could be grimacing she could be grimacing we could be grimacing you could be grimacing they could be grimacing
Perfeito
I could have grimaced you could have grimaced she could have grimaced we could have grimaced you could have grimaced they could have grimaced
Perfeito com V-ing
I could have been grimacing you could have been grimacing she could have been grimacing we could have been grimacing you could have been grimacing they could have been grimacing
Negação
Forma simple
I could not grimace you could not grimace she could not grimace we could not grimace you could not grimace they could not grimace
Forma com V-ing
I could not be grimacing you could not be grimacing she could not be grimacing we could not be grimacing you could not be grimacing they could not be grimacing
Perfeito
I could not have grimaced you could not have grimaced she could not have grimaced we could not have grimaced you could not have grimaced they could not have grimaced
Perfeito com V-ing
I could not have been grimacing you could not have been grimacing she could not have been grimacing we could not have been grimacing you could not have been grimacing they could not have been grimacing
Forma interrogativa
Forma simple
could I grimace? could you grimace? could she grimace? could we grimace? could you grimace? could they grimace?
Forma com V-ing
could I be grimacing? could you be grimacing? could she be grimacing? could we be grimacing? could you be grimacing? could they be grimacing?
Perfeito
could I have grimaced? could you have grimaced? could she have grimaced? could we have grimaced? could you have grimaced? could they have grimaced?
Perfeito com V-ing
could I have been grimacing? could you have been grimacing? could she have been grimacing? could we have been grimacing? could you have been grimacing? could they have been grimacing?
Forma interro-Negação
Forma simple
could I not grimace? could you not grimace? could she not grimace? could we not grimace? could you not grimace? could they not grimace?
Forma com V-ing
could I not be grimacing? could you not be grimacing? could she not be grimacing? could we not be grimacing? could you not be grimacing? could they not be grimacing?
Perfeito
could I not have grimaced? could you not have grimaced? could she not have grimaced? could we not have grimaced? could you not have grimaced? could they not have grimaced?
Perfeito com V-ing
could I not have been grimacing? could you not have been grimacing? could she not have been grimacing? could we not have been grimacing? could you not have been grimacing? could they not have been grimacing?