Conjugação do verbo inglês
COULD INJECT

Verbo regular: inject - injected - injected

Afirmação

Forma simple	Forma com V-ing
I could inject you could inject he could inject we could inject you could inject they could inject	I could be injecting you could be injecting he could be injecting we could be injecting you could be injecting they could be injecting
Perfeito	Perfeito com V-ing
I could have injected you could have injected he could have injected we could have injected you could have injected they could have injected	I could have been injecting you could have been injecting he could have been injecting we could have been injecting you could have been injecting they could have been injecting

Negação

Forma simple	Forma com V-ing
I couldn't inject you couldn't inject he couldn't inject we couldn't inject you couldn't inject they couldn't inject	I couldn't be injecting you couldn't be injecting he couldn't be injecting we couldn't be injecting you couldn't be injecting they couldn't be injecting
Perfeito	Perfeito com V-ing
I couldn't have injected you couldn't have injected he couldn't have injected we couldn't have injected you couldn't have injected they couldn't have injected	I couldn't have been injecting you couldn't have been injecting he couldn't have been injecting we couldn't have been injecting you couldn't have been injecting they couldn't have been injecting

Forma interrogativa

Forma simple	Forma com V-ing
could I inject? could you inject? could he inject? could we inject? could you inject? could they inject?	could I be injecting? could you be injecting? could he be injecting? could we be injecting? could you be injecting? could they be injecting?
Perfeito	Perfeito com V-ing
could I have injected? could you have injected? could he have injected? could we have injected? could you have injected? could they have injected?	could I have been injecting? could you have been injecting? could he have been injecting? could we have been injecting? could you have been injecting? could they have been injecting?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I inject? couldn't you inject? couldn't he inject? couldn't we inject? couldn't you inject? couldn't they inject?	couldn't I be injecting? couldn't you be injecting? couldn't he be injecting? couldn't we be injecting? couldn't you be injecting? couldn't they be injecting?
Perfeito	Perfeito com V-ing
couldn't I have injected? couldn't you have injected? couldn't he have injected? couldn't we have injected? couldn't you have injected? couldn't they have injected?	couldn't I have been injecting? couldn't you have been injecting? couldn't he have been injecting? couldn't we have been injecting? couldn't you have been injecting? couldn't they have been injecting?