I could ear you could ear he could ear we could ear you could ear they could ear
Forma com V-ing
I could be earing you could be earing he could be earing we could be earing you could be earing they could be earing
Perfeito
I could have eared you could have eared he could have eared we could have eared you could have eared they could have eared
Perfeito com V-ing
I could have been earing you could have been earing he could have been earing we could have been earing you could have been earing they could have been earing
Negação
Forma simple
I could not ear you could not ear he could not ear we could not ear you could not ear they could not ear
Forma com V-ing
I could not be earing you could not be earing he could not be earing we could not be earing you could not be earing they could not be earing
Perfeito
I could not have eared you could not have eared he could not have eared we could not have eared you could not have eared they could not have eared
Perfeito com V-ing
I could not have been earing you could not have been earing he could not have been earing we could not have been earing you could not have been earing they could not have been earing
Forma interrogativa
Forma simple
could I ear? could you ear? could he ear? could we ear? could you ear? could they ear?
Forma com V-ing
could I be earing? could you be earing? could he be earing? could we be earing? could you be earing? could they be earing?
Perfeito
could I have eared? could you have eared? could he have eared? could we have eared? could you have eared? could they have eared?
Perfeito com V-ing
could I have been earing? could you have been earing? could he have been earing? could we have been earing? could you have been earing? could they have been earing?
Forma interro-Negação
Forma simple
could I not ear? could you not ear? could he not ear? could we not ear? could you not ear? could they not ear?
Forma com V-ing
could I not be earing? could you not be earing? could he not be earing? could we not be earing? could you not be earing? could they not be earing?
Perfeito
could I not have eared? could you not have eared? could he not have eared? could we not have eared? could you not have eared? could they not have eared?
Perfeito com V-ing
could I not have been earing? could you not have been earing? could he not have been earing? could we not have been earing? could you not have been earing? could they not have been earing?