Conjugación del verbo inglés
COULD PUNCTURE

Verbo regular: puncture - punctured - punctured

Afirmación

Forma simple	Forma con V-ing
I could puncture you could puncture he could puncture we could puncture you could puncture they could puncture	I could be puncturing you could be puncturing he could be puncturing we could be puncturing you could be puncturing they could be puncturing
Perfecto	Perfecto con V-ing
I could have punctured you could have punctured he could have punctured we could have punctured you could have punctured they could have punctured	I could have been puncturing you could have been puncturing he could have been puncturing we could have been puncturing you could have been puncturing they could have been puncturing

Negación

Forma simple	Forma con V-ing
I could not puncture you could not puncture he could not puncture we could not puncture you could not puncture they could not puncture	I could not be puncturing you could not be puncturing he could not be puncturing we could not be puncturing you could not be puncturing they could not be puncturing
Perfecto	Perfecto con V-ing
I could not have punctured you could not have punctured he could not have punctured we could not have punctured you could not have punctured they could not have punctured	I could not have been puncturing you could not have been puncturing he could not have been puncturing we could not have been puncturing you could not have been puncturing they could not have been puncturing

Forma interrogativa

Forma simple	Forma con V-ing
could I puncture? could you puncture? could he puncture? could we puncture? could you puncture? could they puncture?	could I be puncturing? could you be puncturing? could he be puncturing? could we be puncturing? could you be puncturing? could they be puncturing?
Perfecto	Perfecto con V-ing
could I have punctured? could you have punctured? could he have punctured? could we have punctured? could you have punctured? could they have punctured?	could I have been puncturing? could you have been puncturing? could he have been puncturing? could we have been puncturing? could you have been puncturing? could they have been puncturing?

Forma interro-negativa

Forma simple	Forma con V-ing
could I not puncture? could you not puncture? could he not puncture? could we not puncture? could you not puncture? could they not puncture?	could I not be puncturing? could you not be puncturing? could he not be puncturing? could we not be puncturing? could you not be puncturing? could they not be puncturing?
Perfecto	Perfecto con V-ing
could I not have punctured? could you not have punctured? could he not have punctured? could we not have punctured? could you not have punctured? could they not have punctured?	could I not have been puncturing? could you not have been puncturing? could he not have been puncturing? could we not have been puncturing? could you not have been puncturing? could they not have been puncturing?