Conjugação do verbo inglês
COULD PROTEST

Verbo regular: protest - protested - protested

Afirmação

Forma simple	Forma com V-ing
I could protest you could protest he could protest we could protest you could protest they could protest	I could be protesting you could be protesting he could be protesting we could be protesting you could be protesting they could be protesting
Perfeito	Perfeito com V-ing
I could have protested you could have protested he could have protested we could have protested you could have protested they could have protested	I could have been protesting you could have been protesting he could have been protesting we could have been protesting you could have been protesting they could have been protesting

Negação

Forma simple	Forma com V-ing
I couldn't protest you couldn't protest he couldn't protest we couldn't protest you couldn't protest they couldn't protest	I couldn't be protesting you couldn't be protesting he couldn't be protesting we couldn't be protesting you couldn't be protesting they couldn't be protesting
Perfeito	Perfeito com V-ing
I couldn't have protested you couldn't have protested he couldn't have protested we couldn't have protested you couldn't have protested they couldn't have protested	I couldn't have been protesting you couldn't have been protesting he couldn't have been protesting we couldn't have been protesting you couldn't have been protesting they couldn't have been protesting

Forma interrogativa

Forma simple	Forma com V-ing
could I protest? could you protest? could he protest? could we protest? could you protest? could they protest?	could I be protesting? could you be protesting? could he be protesting? could we be protesting? could you be protesting? could they be protesting?
Perfeito	Perfeito com V-ing
could I have protested? could you have protested? could he have protested? could we have protested? could you have protested? could they have protested?	could I have been protesting? could you have been protesting? could he have been protesting? could we have been protesting? could you have been protesting? could they have been protesting?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I protest? couldn't you protest? couldn't he protest? couldn't we protest? couldn't you protest? couldn't they protest?	couldn't I be protesting? couldn't you be protesting? couldn't he be protesting? couldn't we be protesting? couldn't you be protesting? couldn't they be protesting?
Perfeito	Perfeito com V-ing
couldn't I have protested? couldn't you have protested? couldn't he have protested? couldn't we have protested? couldn't you have protested? couldn't they have protested?	couldn't I have been protesting? couldn't you have been protesting? couldn't he have been protesting? couldn't we have been protesting? couldn't you have been protesting? couldn't they have been protesting?