Conjugação do verbo inglês
COULD KILL

Verbo regular: kill - killed - killed

Afirmação

Forma simple	Forma com V-ing
I could kill you could kill she could kill we could kill you could kill they could kill	I could be killing you could be killing she could be killing we could be killing you could be killing they could be killing
Perfeito	Perfeito com V-ing
I could have killed you could have killed she could have killed we could have killed you could have killed they could have killed	I could have been killing you could have been killing she could have been killing we could have been killing you could have been killing they could have been killing

Negação

Forma simple	Forma com V-ing
I couldn't kill you couldn't kill she couldn't kill we couldn't kill you couldn't kill they couldn't kill	I couldn't be killing you couldn't be killing she couldn't be killing we couldn't be killing you couldn't be killing they couldn't be killing
Perfeito	Perfeito com V-ing
I couldn't have killed you couldn't have killed she couldn't have killed we couldn't have killed you couldn't have killed they couldn't have killed	I couldn't have been killing you couldn't have been killing she couldn't have been killing we couldn't have been killing you couldn't have been killing they couldn't have been killing

Forma interrogativa

Forma simple	Forma com V-ing
could I kill? could you kill? could she kill? could we kill? could you kill? could they kill?	could I be killing? could you be killing? could she be killing? could we be killing? could you be killing? could they be killing?
Perfeito	Perfeito com V-ing
could I have killed? could you have killed? could she have killed? could we have killed? could you have killed? could they have killed?	could I have been killing? could you have been killing? could she have been killing? could we have been killing? could you have been killing? could they have been killing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I kill? couldn't you kill? couldn't she kill? couldn't we kill? couldn't you kill? couldn't they kill?	couldn't I be killing? couldn't you be killing? couldn't she be killing? couldn't we be killing? couldn't you be killing? couldn't they be killing?
Perfeito	Perfeito com V-ing
couldn't I have killed? couldn't you have killed? couldn't she have killed? couldn't we have killed? couldn't you have killed? couldn't they have killed?	couldn't I have been killing? couldn't you have been killing? couldn't she have been killing? couldn't we have been killing? couldn't you have been killing? couldn't they have been killing?