Conjugação do verbo inglês
COULD ACE

Verbo regular: ace - aced - aced

Afirmação

Forma simple	Forma com V-ing
I could ace you could ace she could ace we could ace you could ace they could ace	I could be acing you could be acing she could be acing we could be acing you could be acing they could be acing
Perfeito	Perfeito com V-ing
I could have aced you could have aced she could have aced we could have aced you could have aced they could have aced	I could have been acing you could have been acing she could have been acing we could have been acing you could have been acing they could have been acing

Negação

Forma simple	Forma com V-ing
I couldn't ace you couldn't ace she couldn't ace we couldn't ace you couldn't ace they couldn't ace	I couldn't be acing you couldn't be acing she couldn't be acing we couldn't be acing you couldn't be acing they couldn't be acing
Perfeito	Perfeito com V-ing
I couldn't have aced you couldn't have aced she couldn't have aced we couldn't have aced you couldn't have aced they couldn't have aced	I couldn't have been acing you couldn't have been acing she couldn't have been acing we couldn't have been acing you couldn't have been acing they couldn't have been acing

Forma interrogativa

Forma simple	Forma com V-ing
could I ace? could you ace? could she ace? could we ace? could you ace? could they ace?	could I be acing? could you be acing? could she be acing? could we be acing? could you be acing? could they be acing?
Perfeito	Perfeito com V-ing
could I have aced? could you have aced? could she have aced? could we have aced? could you have aced? could they have aced?	could I have been acing? could you have been acing? could she have been acing? could we have been acing? could you have been acing? could they have been acing?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I ace? couldn't you ace? couldn't she ace? couldn't we ace? couldn't you ace? couldn't they ace?	couldn't I be acing? couldn't you be acing? couldn't she be acing? couldn't we be acing? couldn't you be acing? couldn't they be acing?
Perfeito	Perfeito com V-ing
couldn't I have aced? couldn't you have aced? couldn't she have aced? couldn't we have aced? couldn't you have aced? couldn't they have aced?	couldn't I have been acing? couldn't you have been acing? couldn't she have been acing? couldn't we have been acing? couldn't you have been acing? couldn't they have been acing?