Conjugação do verbo inglês
COULD CAMPAIGN

Verbo regular: campaign - campaigned - campaigned

Afirmação

Forma simple	Forma com V-ing
I could campaign you could campaign he could campaign we could campaign you could campaign they could campaign	I could be campaigning you could be campaigning he could be campaigning we could be campaigning you could be campaigning they could be campaigning
Perfeito	Perfeito com V-ing
I could have campaigned you could have campaigned he could have campaigned we could have campaigned you could have campaigned they could have campaigned	I could have been campaigning you could have been campaigning he could have been campaigning we could have been campaigning you could have been campaigning they could have been campaigning

Negação

Forma simple	Forma com V-ing
I could not campaign you could not campaign he could not campaign we could not campaign you could not campaign they could not campaign	I could not be campaigning you could not be campaigning he could not be campaigning we could not be campaigning you could not be campaigning they could not be campaigning
Perfeito	Perfeito com V-ing
I could not have campaigned you could not have campaigned he could not have campaigned we could not have campaigned you could not have campaigned they could not have campaigned	I could not have been campaigning you could not have been campaigning he could not have been campaigning we could not have been campaigning you could not have been campaigning they could not have been campaigning

Forma interrogativa

Forma simple	Forma com V-ing
could I campaign? could you campaign? could he campaign? could we campaign? could you campaign? could they campaign?	could I be campaigning? could you be campaigning? could he be campaigning? could we be campaigning? could you be campaigning? could they be campaigning?
Perfeito	Perfeito com V-ing
could I have campaigned? could you have campaigned? could he have campaigned? could we have campaigned? could you have campaigned? could they have campaigned?	could I have been campaigning? could you have been campaigning? could he have been campaigning? could we have been campaigning? could you have been campaigning? could they have been campaigning?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not campaign? could you not campaign? could he not campaign? could we not campaign? could you not campaign? could they not campaign?	could I not be campaigning? could you not be campaigning? could he not be campaigning? could we not be campaigning? could you not be campaigning? could they not be campaigning?
Perfeito	Perfeito com V-ing
could I not have campaigned? could you not have campaigned? could he not have campaigned? could we not have campaigned? could you not have campaigned? could they not have campaigned?	could I not have been campaigning? could you not have been campaigning? could he not have been campaigning? could we not have been campaigning? could you not have been campaigning? could they not have been campaigning?