I could grey you could grey he could grey we could grey you could grey they could grey
Forma com V-ing
I could be greying you could be greying he could be greying we could be greying you could be greying they could be greying
Perfeito
I could have greyed you could have greyed he could have greyed we could have greyed you could have greyed they could have greyed
Perfeito com V-ing
I could have been greying you could have been greying he could have been greying we could have been greying you could have been greying they could have been greying
Negação
Forma simple
I could not grey you could not grey he could not grey we could not grey you could not grey they could not grey
Forma com V-ing
I could not be greying you could not be greying he could not be greying we could not be greying you could not be greying they could not be greying
Perfeito
I could not have greyed you could not have greyed he could not have greyed we could not have greyed you could not have greyed they could not have greyed
Perfeito com V-ing
I could not have been greying you could not have been greying he could not have been greying we could not have been greying you could not have been greying they could not have been greying
Forma interrogativa
Forma simple
could I grey? could you grey? could he grey? could we grey? could you grey? could they grey?
Forma com V-ing
could I be greying? could you be greying? could he be greying? could we be greying? could you be greying? could they be greying?
Perfeito
could I have greyed? could you have greyed? could he have greyed? could we have greyed? could you have greyed? could they have greyed?
Perfeito com V-ing
could I have been greying? could you have been greying? could he have been greying? could we have been greying? could you have been greying? could they have been greying?
Forma interro-Negação
Forma simple
could I not grey? could you not grey? could he not grey? could we not grey? could you not grey? could they not grey?
Forma com V-ing
could I not be greying? could you not be greying? could he not be greying? could we not be greying? could you not be greying? could they not be greying?
Perfeito
could I not have greyed? could you not have greyed? could he not have greyed? could we not have greyed? could you not have greyed? could they not have greyed?
Perfeito com V-ing
could I not have been greying? could you not have been greying? could he not have been greying? could we not have been greying? could you not have been greying? could they not have been greying?