Conjugação do verbo inglês
COULD RETRACT

Verbo regular: retract - retracted - retracted

Afirmação

Forma simple	Forma com V-ing
I could retract you could retract he could retract we could retract you could retract they could retract	I could be retracting you could be retracting he could be retracting we could be retracting you could be retracting they could be retracting
Perfeito	Perfeito com V-ing
I could have retracted you could have retracted he could have retracted we could have retracted you could have retracted they could have retracted	I could have been retracting you could have been retracting he could have been retracting we could have been retracting you could have been retracting they could have been retracting

Negação

Forma simple	Forma com V-ing
I could not retract you could not retract he could not retract we could not retract you could not retract they could not retract	I could not be retracting you could not be retracting he could not be retracting we could not be retracting you could not be retracting they could not be retracting
Perfeito	Perfeito com V-ing
I could not have retracted you could not have retracted he could not have retracted we could not have retracted you could not have retracted they could not have retracted	I could not have been retracting you could not have been retracting he could not have been retracting we could not have been retracting you could not have been retracting they could not have been retracting

Forma interrogativa

Forma simple	Forma com V-ing
could I retract? could you retract? could he retract? could we retract? could you retract? could they retract?	could I be retracting? could you be retracting? could he be retracting? could we be retracting? could you be retracting? could they be retracting?
Perfeito	Perfeito com V-ing
could I have retracted? could you have retracted? could he have retracted? could we have retracted? could you have retracted? could they have retracted?	could I have been retracting? could you have been retracting? could he have been retracting? could we have been retracting? could you have been retracting? could they have been retracting?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not retract? could you not retract? could he not retract? could we not retract? could you not retract? could they not retract?	could I not be retracting? could you not be retracting? could he not be retracting? could we not be retracting? could you not be retracting? could they not be retracting?
Perfeito	Perfeito com V-ing
could I not have retracted? could you not have retracted? could he not have retracted? could we not have retracted? could you not have retracted? could they not have retracted?	could I not have been retracting? could you not have been retracting? could he not have been retracting? could we not have been retracting? could you not have been retracting? could they not have been retracting?