Conjugação do verbo inglês
COULD DISCUSS

Verbo regular: discuss - discussed - discussed

Afirmação

Forma simple	Forma com V-ing
I could discuss you could discuss he could discuss we could discuss you could discuss they could discuss	I could be discussing you could be discussing he could be discussing we could be discussing you could be discussing they could be discussing
Perfeito	Perfeito com V-ing
I could have discussed you could have discussed he could have discussed we could have discussed you could have discussed they could have discussed	I could have been discussing you could have been discussing he could have been discussing we could have been discussing you could have been discussing they could have been discussing

Negação

Forma simple	Forma com V-ing
I could not discuss you could not discuss he could not discuss we could not discuss you could not discuss they could not discuss	I could not be discussing you could not be discussing he could not be discussing we could not be discussing you could not be discussing they could not be discussing
Perfeito	Perfeito com V-ing
I could not have discussed you could not have discussed he could not have discussed we could not have discussed you could not have discussed they could not have discussed	I could not have been discussing you could not have been discussing he could not have been discussing we could not have been discussing you could not have been discussing they could not have been discussing

Forma interrogativa

Forma simple	Forma com V-ing
could I discuss? could you discuss? could he discuss? could we discuss? could you discuss? could they discuss?	could I be discussing? could you be discussing? could he be discussing? could we be discussing? could you be discussing? could they be discussing?
Perfeito	Perfeito com V-ing
could I have discussed? could you have discussed? could he have discussed? could we have discussed? could you have discussed? could they have discussed?	could I have been discussing? could you have been discussing? could he have been discussing? could we have been discussing? could you have been discussing? could they have been discussing?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not discuss? could you not discuss? could he not discuss? could we not discuss? could you not discuss? could they not discuss?	could I not be discussing? could you not be discussing? could he not be discussing? could we not be discussing? could you not be discussing? could they not be discussing?
Perfeito	Perfeito com V-ing
could I not have discussed? could you not have discussed? could he not have discussed? could we not have discussed? could you not have discussed? could they not have discussed?	could I not have been discussing? could you not have been discussing? could he not have been discussing? could we not have been discussing? could you not have been discussing? could they not have been discussing?