Conjugación del verbo inglés
COULD UNSCREW

Verbo regular: unscrew - unscrewed - unscrewed

Afirmación

Forma simple	Forma con V-ing
I could unscrew you could unscrew he could unscrew we could unscrew you could unscrew they could unscrew	I could be unscrewing you could be unscrewing he could be unscrewing we could be unscrewing you could be unscrewing they could be unscrewing
Perfecto	Perfecto con V-ing
I could have unscrewed you could have unscrewed he could have unscrewed we could have unscrewed you could have unscrewed they could have unscrewed	I could have been unscrewing you could have been unscrewing he could have been unscrewing we could have been unscrewing you could have been unscrewing they could have been unscrewing

Negación

Forma simple	Forma con V-ing
I could not unscrew you could not unscrew he could not unscrew we could not unscrew you could not unscrew they could not unscrew	I could not be unscrewing you could not be unscrewing he could not be unscrewing we could not be unscrewing you could not be unscrewing they could not be unscrewing
Perfecto	Perfecto con V-ing
I could not have unscrewed you could not have unscrewed he could not have unscrewed we could not have unscrewed you could not have unscrewed they could not have unscrewed	I could not have been unscrewing you could not have been unscrewing he could not have been unscrewing we could not have been unscrewing you could not have been unscrewing they could not have been unscrewing

Forma interrogativa

Forma simple	Forma con V-ing
could I unscrew? could you unscrew? could he unscrew? could we unscrew? could you unscrew? could they unscrew?	could I be unscrewing? could you be unscrewing? could he be unscrewing? could we be unscrewing? could you be unscrewing? could they be unscrewing?
Perfecto	Perfecto con V-ing
could I have unscrewed? could you have unscrewed? could he have unscrewed? could we have unscrewed? could you have unscrewed? could they have unscrewed?	could I have been unscrewing? could you have been unscrewing? could he have been unscrewing? could we have been unscrewing? could you have been unscrewing? could they have been unscrewing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not unscrew? could you not unscrew? could he not unscrew? could we not unscrew? could you not unscrew? could they not unscrew?	could I not be unscrewing? could you not be unscrewing? could he not be unscrewing? could we not be unscrewing? could you not be unscrewing? could they not be unscrewing?
Perfecto	Perfecto con V-ing
could I not have unscrewed? could you not have unscrewed? could he not have unscrewed? could we not have unscrewed? could you not have unscrewed? could they not have unscrewed?	could I not have been unscrewing? could you not have been unscrewing? could he not have been unscrewing? could we not have been unscrewing? could you not have been unscrewing? could they not have been unscrewing?