Conjugação do verbo inglês
COULD BACKFIRE

Verbo regular: backfire - backfired - backfired

Afirmação

Forma simple	Forma com V-ing
I could backfire you could backfire he could backfire we could backfire you could backfire they could backfire	I could be backfiring you could be backfiring he could be backfiring we could be backfiring you could be backfiring they could be backfiring
Perfeito	Perfeito com V-ing
I could have backfired you could have backfired he could have backfired we could have backfired you could have backfired they could have backfired	I could have been backfiring you could have been backfiring he could have been backfiring we could have been backfiring you could have been backfiring they could have been backfiring

Negação

Forma simple	Forma com V-ing
I could not backfire you could not backfire he could not backfire we could not backfire you could not backfire they could not backfire	I could not be backfiring you could not be backfiring he could not be backfiring we could not be backfiring you could not be backfiring they could not be backfiring
Perfeito	Perfeito com V-ing
I could not have backfired you could not have backfired he could not have backfired we could not have backfired you could not have backfired they could not have backfired	I could not have been backfiring you could not have been backfiring he could not have been backfiring we could not have been backfiring you could not have been backfiring they could not have been backfiring

Forma interrogativa

Forma simple	Forma com V-ing
could I backfire? could you backfire? could he backfire? could we backfire? could you backfire? could they backfire?	could I be backfiring? could you be backfiring? could he be backfiring? could we be backfiring? could you be backfiring? could they be backfiring?
Perfeito	Perfeito com V-ing
could I have backfired? could you have backfired? could he have backfired? could we have backfired? could you have backfired? could they have backfired?	could I have been backfiring? could you have been backfiring? could he have been backfiring? could we have been backfiring? could you have been backfiring? could they have been backfiring?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not backfire? could you not backfire? could he not backfire? could we not backfire? could you not backfire? could they not backfire?	could I not be backfiring? could you not be backfiring? could he not be backfiring? could we not be backfiring? could you not be backfiring? could they not be backfiring?
Perfeito	Perfeito com V-ing
could I not have backfired? could you not have backfired? could he not have backfired? could we not have backfired? could you not have backfired? could they not have backfired?	could I not have been backfiring? could you not have been backfiring? could he not have been backfiring? could we not have been backfiring? could you not have been backfiring? could they not have been backfiring?