Conjugación del verbo inglés
COULD POSTFIX

Verbo regular: postfix - postfixed - postfixed

Afirmación

Forma simple	Forma con V-ing
I could postfix you could postfix he could postfix we could postfix you could postfix they could postfix	I could be postfixing you could be postfixing he could be postfixing we could be postfixing you could be postfixing they could be postfixing
Perfecto	Perfecto con V-ing
I could have postfixed you could have postfixed he could have postfixed we could have postfixed you could have postfixed they could have postfixed	I could have been postfixing you could have been postfixing he could have been postfixing we could have been postfixing you could have been postfixing they could have been postfixing

Negación

Forma simple	Forma con V-ing
I could not postfix you could not postfix he could not postfix we could not postfix you could not postfix they could not postfix	I could not be postfixing you could not be postfixing he could not be postfixing we could not be postfixing you could not be postfixing they could not be postfixing
Perfecto	Perfecto con V-ing
I could not have postfixed you could not have postfixed he could not have postfixed we could not have postfixed you could not have postfixed they could not have postfixed	I could not have been postfixing you could not have been postfixing he could not have been postfixing we could not have been postfixing you could not have been postfixing they could not have been postfixing

Forma interrogativa

Forma simple	Forma con V-ing
could I postfix? could you postfix? could he postfix? could we postfix? could you postfix? could they postfix?	could I be postfixing? could you be postfixing? could he be postfixing? could we be postfixing? could you be postfixing? could they be postfixing?
Perfecto	Perfecto con V-ing
could I have postfixed? could you have postfixed? could he have postfixed? could we have postfixed? could you have postfixed? could they have postfixed?	could I have been postfixing? could you have been postfixing? could he have been postfixing? could we have been postfixing? could you have been postfixing? could they have been postfixing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not postfix? could you not postfix? could he not postfix? could we not postfix? could you not postfix? could they not postfix?	could I not be postfixing? could you not be postfixing? could he not be postfixing? could we not be postfixing? could you not be postfixing? could they not be postfixing?
Perfecto	Perfecto con V-ing
could I not have postfixed? could you not have postfixed? could he not have postfixed? could we not have postfixed? could you not have postfixed? could they not have postfixed?	could I not have been postfixing? could you not have been postfixing? could he not have been postfixing? could we not have been postfixing? could you not have been postfixing? could they not have been postfixing?