Conjugação do verbo inglês
COULD ANSWER

Verbo regular: answer - answered - answered

Afirmação

Forma simple	Forma com V-ing
I could answer you could answer she could answer we could answer you could answer they could answer	I could be answering you could be answering she could be answering we could be answering you could be answering they could be answering
Perfeito	Perfeito com V-ing
I could have answered you could have answered she could have answered we could have answered you could have answered they could have answered	I could have been answering you could have been answering she could have been answering we could have been answering you could have been answering they could have been answering

Negação

Forma simple	Forma com V-ing
I could not answer you could not answer she could not answer we could not answer you could not answer they could not answer	I could not be answering you could not be answering she could not be answering we could not be answering you could not be answering they could not be answering
Perfeito	Perfeito com V-ing
I could not have answered you could not have answered she could not have answered we could not have answered you could not have answered they could not have answered	I could not have been answering you could not have been answering she could not have been answering we could not have been answering you could not have been answering they could not have been answering

Forma interrogativa

Forma simple	Forma com V-ing
could I answer? could you answer? could she answer? could we answer? could you answer? could they answer?	could I be answering? could you be answering? could she be answering? could we be answering? could you be answering? could they be answering?
Perfeito	Perfeito com V-ing
could I have answered? could you have answered? could she have answered? could we have answered? could you have answered? could they have answered?	could I have been answering? could you have been answering? could she have been answering? could we have been answering? could you have been answering? could they have been answering?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not answer? could you not answer? could she not answer? could we not answer? could you not answer? could they not answer?	could I not be answering? could you not be answering? could she not be answering? could we not be answering? could you not be answering? could they not be answering?
Perfeito	Perfeito com V-ing
could I not have answered? could you not have answered? could she not have answered? could we not have answered? could you not have answered? could they not have answered?	could I not have been answering? could you not have been answering? could she not have been answering? could we not have been answering? could you not have been answering? could they not have been answering?