I could crumple you could crumple he could crumple we could crumple you could crumple they could crumple
Forma con V-ing
I could be crumpling you could be crumpling he could be crumpling we could be crumpling you could be crumpling they could be crumpling
Perfecto
I could have crumpled you could have crumpled he could have crumpled we could have crumpled you could have crumpled they could have crumpled
Perfecto con V-ing
I could have been crumpling you could have been crumpling he could have been crumpling we could have been crumpling you could have been crumpling they could have been crumpling
Negación
Forma simple
I could not crumple you could not crumple he could not crumple we could not crumple you could not crumple they could not crumple
Forma con V-ing
I could not be crumpling you could not be crumpling he could not be crumpling we could not be crumpling you could not be crumpling they could not be crumpling
Perfecto
I could not have crumpled you could not have crumpled he could not have crumpled we could not have crumpled you could not have crumpled they could not have crumpled
Perfecto con V-ing
I could not have been crumpling you could not have been crumpling he could not have been crumpling we could not have been crumpling you could not have been crumpling they could not have been crumpling
Forma interrogativa
Forma simple
could I crumple? could you crumple? could he crumple? could we crumple? could you crumple? could they crumple?
Forma con V-ing
could I be crumpling? could you be crumpling? could he be crumpling? could we be crumpling? could you be crumpling? could they be crumpling?
Perfecto
could I have crumpled? could you have crumpled? could he have crumpled? could we have crumpled? could you have crumpled? could they have crumpled?
Perfecto con V-ing
could I have been crumpling? could you have been crumpling? could he have been crumpling? could we have been crumpling? could you have been crumpling? could they have been crumpling?
Forma interro-negativa
Forma simple
could I not crumple? could you not crumple? could he not crumple? could we not crumple? could you not crumple? could they not crumple?
Forma con V-ing
could I not be crumpling? could you not be crumpling? could he not be crumpling? could we not be crumpling? could you not be crumpling? could they not be crumpling?
Perfecto
could I not have crumpled? could you not have crumpled? could he not have crumpled? could we not have crumpled? could you not have crumpled? could they not have crumpled?
Perfecto con V-ing
could I not have been crumpling? could you not have been crumpling? could he not have been crumpling? could we not have been crumpling? could you not have been crumpling? could they not have been crumpling?