Conjugação do verbo inglês
COULD VAIL

Verbo regular: vail - vailed - vailed

Afirmação

Forma simple	Forma com V-ing
I could vail you could vail he could vail we could vail you could vail they could vail	I could be vailing you could be vailing he could be vailing we could be vailing you could be vailing they could be vailing
Perfeito	Perfeito com V-ing
I could have vailed you could have vailed he could have vailed we could have vailed you could have vailed they could have vailed	I could have been vailing you could have been vailing he could have been vailing we could have been vailing you could have been vailing they could have been vailing

Negação

Forma simple	Forma com V-ing
I could not vail you could not vail he could not vail we could not vail you could not vail they could not vail	I could not be vailing you could not be vailing he could not be vailing we could not be vailing you could not be vailing they could not be vailing
Perfeito	Perfeito com V-ing
I could not have vailed you could not have vailed he could not have vailed we could not have vailed you could not have vailed they could not have vailed	I could not have been vailing you could not have been vailing he could not have been vailing we could not have been vailing you could not have been vailing they could not have been vailing

Forma interrogativa

Forma simple	Forma com V-ing
could I vail? could you vail? could he vail? could we vail? could you vail? could they vail?	could I be vailing? could you be vailing? could he be vailing? could we be vailing? could you be vailing? could they be vailing?
Perfeito	Perfeito com V-ing
could I have vailed? could you have vailed? could he have vailed? could we have vailed? could you have vailed? could they have vailed?	could I have been vailing? could you have been vailing? could he have been vailing? could we have been vailing? could you have been vailing? could they have been vailing?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not vail? could you not vail? could he not vail? could we not vail? could you not vail? could they not vail?	could I not be vailing? could you not be vailing? could he not be vailing? could we not be vailing? could you not be vailing? could they not be vailing?
Perfeito	Perfeito com V-ing
could I not have vailed? could you not have vailed? could he not have vailed? could we not have vailed? could you not have vailed? could they not have vailed?	could I not have been vailing? could you not have been vailing? could he not have been vailing? could we not have been vailing? could you not have been vailing? could they not have been vailing?