Conjugação do verbo inglês
COULD UNTIE

Verbo regular: untie - untied - untied

Afirmação

Forma simple	Forma com V-ing
I could untie you could untie he could untie we could untie you could untie they could untie	I could be untying you could be untying he could be untying we could be untying you could be untying they could be untying
Perfeito	Perfeito com V-ing
I could have untied you could have untied he 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 he could have been untying we could have been untying you could have been untying they could have been untying

Negação

Forma simple	Forma com V-ing
I couldn't untie you couldn't untie he 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 he couldn't be untying we couldn't be untying you couldn't be untying they couldn't be untying
Perfeito	Perfeito com V-ing
I couldn't have untied you couldn't have untied he 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 he 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 com V-ing
could I untie? could you untie? could he untie? could we untie? could you untie? could they untie?	could I be untying? could you be untying? could he be untying? could we be untying? could you be untying? could they be untying?
Perfeito	Perfeito com V-ing
could I have untied? could you have untied? could he 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 he have been untying? could we have been untying? could you have been untying? could they have been untying?

Forma interro-Negação

Forma simple	Forma com V-ing
couldn't I untie? couldn't you untie? couldn't he 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 he be untying? couldn't we be untying? couldn't you be untying? couldn't they be untying?
Perfeito	Perfeito com V-ing
couldn't I have untied? couldn't you have untied? couldn't he 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 he have been untying? couldn't we have been untying? couldn't you have been untying? couldn't they have been untying?