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 couldn't untie you couldn't untie she couldn't untie we couldn't untie you couldn't untie they couldn't untie	I couldn't be untying you couldn't be untying she couldn't be untying we couldn't be untying you couldn't be untying they couldn't be untying
Perfecto	Perfecto con V-ing
I couldn't have untied you couldn't have untied she couldn't have untied we couldn't have untied you couldn't have untied they couldn't have untied	I couldn't have been untying you couldn't have been untying she couldn't have been untying we couldn't have been untying you couldn't have been untying they couldn't 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
couldn't I untie? couldn't you untie? couldn't she untie? couldn't we untie? couldn't you untie? couldn't they untie?	couldn't I be untying? couldn't you be untying? couldn't she be untying? couldn't we be untying? couldn't you be untying? couldn't they be untying?
Perfecto	Perfecto con V-ing
couldn't I have untied? couldn't you have untied? couldn't she have untied? couldn't we have untied? couldn't you have untied? couldn't they have untied?	couldn't I have been untying? couldn't you have been untying? couldn't she have been untying? couldn't we have been untying? couldn't you have been untying? couldn't they have been untying?