Conjugação do verbo inglês
COULD RETRIEVE

Verbo regular: retrieve - retrieved - retrieved

Afirmação

Forma simple	Forma com V-ing
I could retrieve you could retrieve he could retrieve we could retrieve you could retrieve they could retrieve	I could be retrieving you could be retrieving he could be retrieving we could be retrieving you could be retrieving they could be retrieving
Perfeito	Perfeito com V-ing
I could have retrieved you could have retrieved he could have retrieved we could have retrieved you could have retrieved they could have retrieved	I could have been retrieving you could have been retrieving he could have been retrieving we could have been retrieving you could have been retrieving they could have been retrieving

Negação

Forma simple	Forma com V-ing
I could not retrieve you could not retrieve he could not retrieve we could not retrieve you could not retrieve they could not retrieve	I could not be retrieving you could not be retrieving he could not be retrieving we could not be retrieving you could not be retrieving they could not be retrieving
Perfeito	Perfeito com V-ing
I could not have retrieved you could not have retrieved he could not have retrieved we could not have retrieved you could not have retrieved they could not have retrieved	I could not have been retrieving you could not have been retrieving he could not have been retrieving we could not have been retrieving you could not have been retrieving they could not have been retrieving

Forma interrogativa

Forma simple	Forma com V-ing
could I retrieve? could you retrieve? could he retrieve? could we retrieve? could you retrieve? could they retrieve?	could I be retrieving? could you be retrieving? could he be retrieving? could we be retrieving? could you be retrieving? could they be retrieving?
Perfeito	Perfeito com V-ing
could I have retrieved? could you have retrieved? could he have retrieved? could we have retrieved? could you have retrieved? could they have retrieved?	could I have been retrieving? could you have been retrieving? could he have been retrieving? could we have been retrieving? could you have been retrieving? could they have been retrieving?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not retrieve? could you not retrieve? could he not retrieve? could we not retrieve? could you not retrieve? could they not retrieve?	could I not be retrieving? could you not be retrieving? could he not be retrieving? could we not be retrieving? could you not be retrieving? could they not be retrieving?
Perfeito	Perfeito com V-ing
could I not have retrieved? could you not have retrieved? could he not have retrieved? could we not have retrieved? could you not have retrieved? could they not have retrieved?	could I not have been retrieving? could you not have been retrieving? could he not have been retrieving? could we not have been retrieving? could you not have been retrieving? could they not have been retrieving?