Conjugación del verbo inglés
COULD UNTIE

Verbo regular: untie - untied - untied

Afirmación

Forma simple	Forma con V-ing
I could untie you could untie she could untie we could untie you could untie they could untie	I could be untying you could be untying she could be untying we could be untying you could be untying they could be untying
Perfecto	Perfecto con V-ing
I could have untied you could have untied she could have untied we could have untied you could have untied they could have untied	I could have been untying you could have been untying she could have been untying we could have been untying you could have been untying they could have been untying

Negación

Forma simple	Forma con V-ing
I could not untie you could not untie she could not untie we could not untie you could not untie they could not untie	I could not be untying you could not be untying she could not be untying we could not be untying you could not be untying they could not be untying
Perfecto	Perfecto con V-ing
I could not have untied you could not have untied she could not have untied we could not have untied you could not have untied they could not have untied	I could not have been untying you could not have been untying she could not have been untying we could not have been untying you could not have been untying they could not have been untying

Forma interrogativa

Forma simple	Forma con V-ing
could I untie? could you untie? could she untie? could we untie? could you untie? could they untie?	could I be untying? could you be untying? could she be untying? could we be untying? could you be untying? could they be untying?
Perfecto	Perfecto con V-ing
could I have untied? could you have untied? could she have untied? could we have untied? could you have untied? could they have untied?	could I have been untying? could you have been untying? could she have been untying? could we have been untying? could you have been untying? could they have been untying?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not untie? could you not untie? could she not untie? could we not untie? could you not untie? could they not untie?	could I not be untying? could you not be untying? could she not be untying? could we not be untying? could you not be untying? could they not be untying?
Perfecto	Perfecto con V-ing
could I not have untied? could you not have untied? could she not have untied? could we not have untied? could you not have untied? could they not have untied?	could I not have been untying? could you not have been untying? could she not have been untying? could we not have been untying? could you not have been untying? could they not have been untying?