I could disco you could disco he could disco we could disco you could disco they could disco
Forma com V-ing
I could be discoing you could be discoing he could be discoing we could be discoing you could be discoing they could be discoing
Perfeito
I could have discoed you could have discoed he could have discoed we could have discoed you could have discoed they could have discoed
Perfeito com V-ing
I could have been discoing you could have been discoing he could have been discoing we could have been discoing you could have been discoing they could have been discoing
Negação
Forma simple
I could not disco you could not disco he could not disco we could not disco you could not disco they could not disco
Forma com V-ing
I could not be discoing you could not be discoing he could not be discoing we could not be discoing you could not be discoing they could not be discoing
Perfeito
I could not have discoed you could not have discoed he could not have discoed we could not have discoed you could not have discoed they could not have discoed
Perfeito com V-ing
I could not have been discoing you could not have been discoing he could not have been discoing we could not have been discoing you could not have been discoing they could not have been discoing
Forma interrogativa
Forma simple
could I disco? could you disco? could he disco? could we disco? could you disco? could they disco?
Forma com V-ing
could I be discoing? could you be discoing? could he be discoing? could we be discoing? could you be discoing? could they be discoing?
Perfeito
could I have discoed? could you have discoed? could he have discoed? could we have discoed? could you have discoed? could they have discoed?
Perfeito com V-ing
could I have been discoing? could you have been discoing? could he have been discoing? could we have been discoing? could you have been discoing? could they have been discoing?
Forma interro-Negação
Forma simple
could I not disco? could you not disco? could he not disco? could we not disco? could you not disco? could they not disco?
Forma com V-ing
could I not be discoing? could you not be discoing? could he not be discoing? could we not be discoing? could you not be discoing? could they not be discoing?
Perfeito
could I not have discoed? could you not have discoed? could he not have discoed? could we not have discoed? could you not have discoed? could they not have discoed?
Perfeito com V-ing
could I not have been discoing? could you not have been discoing? could he not have been discoing? could we not have been discoing? could you not have been discoing? could they not have been discoing?