Conjugação do verbo inglês
COULD SUBSTITUTE

Verbo regular: substitute - substituted - substituted

Afirmação

Forma simple	Forma com V-ing
I could substitute you could substitute she could substitute we could substitute you could substitute they could substitute	I could be substituting you could be substituting she could be substituting we could be substituting you could be substituting they could be substituting
Perfeito	Perfeito com V-ing
I could have substituted you could have substituted she could have substituted we could have substituted you could have substituted they could have substituted	I could have been substituting you could have been substituting she could have been substituting we could have been substituting you could have been substituting they could have been substituting

Negação

Forma simple	Forma com V-ing
I could not substitute you could not substitute she could not substitute we could not substitute you could not substitute they could not substitute	I could not be substituting you could not be substituting she could not be substituting we could not be substituting you could not be substituting they could not be substituting
Perfeito	Perfeito com V-ing
I could not have substituted you could not have substituted she could not have substituted we could not have substituted you could not have substituted they could not have substituted	I could not have been substituting you could not have been substituting she could not have been substituting we could not have been substituting you could not have been substituting they could not have been substituting

Forma interrogativa

Forma simple	Forma com V-ing
could I substitute? could you substitute? could she substitute? could we substitute? could you substitute? could they substitute?	could I be substituting? could you be substituting? could she be substituting? could we be substituting? could you be substituting? could they be substituting?
Perfeito	Perfeito com V-ing
could I have substituted? could you have substituted? could she have substituted? could we have substituted? could you have substituted? could they have substituted?	could I have been substituting? could you have been substituting? could she have been substituting? could we have been substituting? could you have been substituting? could they have been substituting?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not substitute? could you not substitute? could she not substitute? could we not substitute? could you not substitute? could they not substitute?	could I not be substituting? could you not be substituting? could she not be substituting? could we not be substituting? could you not be substituting? could they not be substituting?
Perfeito	Perfeito com V-ing
could I not have substituted? could you not have substituted? could she not have substituted? could we not have substituted? could you not have substituted? could they not have substituted?	could I not have been substituting? could you not have been substituting? could she not have been substituting? could we not have been substituting? could you not have been substituting? could they not have been substituting?