I could grimace you could grimace he could grimace we could grimace you could grimace they could grimace
Forma com V-ing
I could be grimacing you could be grimacing he could be grimacing we could be grimacing you could be grimacing they could be grimacing
Perfeito
I could have grimaced you could have grimaced he 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 he could have been grimacing we could have been grimacing you could have been grimacing they could have been grimacing
Negação
Forma simple
I couldn't grimace you couldn't grimace he couldn't grimace we couldn't grimace you couldn't grimace they couldn't grimace
Forma com V-ing
I couldn't be grimacing you couldn't be grimacing he couldn't be grimacing we couldn't be grimacing you couldn't be grimacing they couldn't be grimacing
Perfeito
I couldn't have grimaced you couldn't have grimaced he couldn't have grimaced we couldn't have grimaced you couldn't have grimaced they couldn't have grimaced
Perfeito com V-ing
I couldn't have been grimacing you couldn't have been grimacing he couldn't have been grimacing we couldn't have been grimacing you couldn't have been grimacing they couldn't have been grimacing
Forma interrogativa
Forma simple
could I grimace? could you grimace? could he grimace? could we grimace? could you grimace? could they grimace?
Forma com V-ing
could I be grimacing? could you be grimacing? could he be grimacing? could we be grimacing? could you be grimacing? could they be grimacing?
Perfeito
could I have grimaced? could you have grimaced? could he 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 he have been grimacing? could we have been grimacing? could you have been grimacing? could they have been grimacing?
Forma interro-Negação
Forma simple
couldn't I grimace? couldn't you grimace? couldn't he grimace? couldn't we grimace? couldn't you grimace? couldn't they grimace?
Forma com V-ing
couldn't I be grimacing? couldn't you be grimacing? couldn't he be grimacing? couldn't we be grimacing? couldn't you be grimacing? couldn't they be grimacing?
Perfeito
couldn't I have grimaced? couldn't you have grimaced? couldn't he have grimaced? couldn't we have grimaced? couldn't you have grimaced? couldn't they have grimaced?
Perfeito com V-ing
couldn't I have been grimacing? couldn't you have been grimacing? couldn't he have been grimacing? couldn't we have been grimacing? couldn't you have been grimacing? couldn't they have been grimacing?