Conjugação do verbo inglês
COULD DESCEND

Verbo regular: descend - descended - descended

Afirmação

Forma simple	Forma com V-ing
I could descend you could descend he could descend we could descend you could descend they could descend	I could be descending you could be descending he could be descending we could be descending you could be descending they could be descending
Perfeito	Perfeito com V-ing
I could have descended you could have descended he could have descended we could have descended you could have descended they could have descended	I could have been descending you could have been descending he could have been descending we could have been descending you could have been descending they could have been descending

Negação

Forma simple	Forma com V-ing
I could not descend you could not descend he could not descend we could not descend you could not descend they could not descend	I could not be descending you could not be descending he could not be descending we could not be descending you could not be descending they could not be descending
Perfeito	Perfeito com V-ing
I could not have descended you could not have descended he could not have descended we could not have descended you could not have descended they could not have descended	I could not have been descending you could not have been descending he could not have been descending we could not have been descending you could not have been descending they could not have been descending

Forma interrogativa

Forma simple	Forma com V-ing
could I descend? could you descend? could he descend? could we descend? could you descend? could they descend?	could I be descending? could you be descending? could he be descending? could we be descending? could you be descending? could they be descending?
Perfeito	Perfeito com V-ing
could I have descended? could you have descended? could he have descended? could we have descended? could you have descended? could they have descended?	could I have been descending? could you have been descending? could he have been descending? could we have been descending? could you have been descending? could they have been descending?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not descend? could you not descend? could he not descend? could we not descend? could you not descend? could they not descend?	could I not be descending? could you not be descending? could he not be descending? could we not be descending? could you not be descending? could they not be descending?
Perfeito	Perfeito com V-ing
could I not have descended? could you not have descended? could he not have descended? could we not have descended? could you not have descended? could they not have descended?	could I not have been descending? could you not have been descending? could he not have been descending? could we not have been descending? could you not have been descending? could they not have been descending?