Conjugação do verbo inglês
COULD UNDERGO

Verbo irregular: undergo - underwent - undergone

Afirmação

Forma simple	Forma com V-ing
I could undergo you could undergo he could undergo we could undergo you could undergo they could undergo	I could be undergoing you could be undergoing he could be undergoing we could be undergoing you could be undergoing they could be undergoing
Perfeito	Perfeito com V-ing
I could have undergone you could have undergone he could have undergone we could have undergone you could have undergone they could have undergone	I could have been undergoing you could have been undergoing he could have been undergoing we could have been undergoing you could have been undergoing they could have been undergoing

Negação

Forma simple	Forma com V-ing
I could not undergo you could not undergo he could not undergo we could not undergo you could not undergo they could not undergo	I could not be undergoing you could not be undergoing he could not be undergoing we could not be undergoing you could not be undergoing they could not be undergoing
Perfeito	Perfeito com V-ing
I could not have undergone you could not have undergone he could not have undergone we could not have undergone you could not have undergone they could not have undergone	I could not have been undergoing you could not have been undergoing he could not have been undergoing we could not have been undergoing you could not have been undergoing they could not have been undergoing

Forma interrogativa

Forma simple	Forma com V-ing
could I undergo? could you undergo? could he undergo? could we undergo? could you undergo? could they undergo?	could I be undergoing? could you be undergoing? could he be undergoing? could we be undergoing? could you be undergoing? could they be undergoing?
Perfeito	Perfeito com V-ing
could I have undergone? could you have undergone? could he have undergone? could we have undergone? could you have undergone? could they have undergone?	could I have been undergoing? could you have been undergoing? could he have been undergoing? could we have been undergoing? could you have been undergoing? could they have been undergoing?

Forma interro-Negação

Forma simple	Forma com V-ing
could I not undergo? could you not undergo? could he not undergo? could we not undergo? could you not undergo? could they not undergo?	could I not be undergoing? could you not be undergoing? could he not be undergoing? could we not be undergoing? could you not be undergoing? could they not be undergoing?
Perfeito	Perfeito com V-ing
could I not have undergone? could you not have undergone? could he not have undergone? could we not have undergone? could you not have undergone? could they not have undergone?	could I not have been undergoing? could you not have been undergoing? could he not have been undergoing? could we not have been undergoing? could you not have been undergoing? could they not have been undergoing?