English verb conjugation
COULD POLYMERIZE

Regular verb: polymerize - polymerized - polymerized

Affirmation

Simple form	V-ing form
I could polymerize you could polymerize he could polymerize we could polymerize you could polymerize they could polymerize	I could be polymerizing you could be polymerizing he could be polymerizing we could be polymerizing you could be polymerizing they could be polymerizing
Perfect	V-ing perfect
I could have polymerized you could have polymerized he could have polymerized we could have polymerized you could have polymerized they could have polymerized	I could have been polymerizing you could have been polymerizing he could have been polymerizing we could have been polymerizing you could have been polymerizing they could have been polymerizing

Negation

Simple form	V-ing form
I could not polymerize you could not polymerize he could not polymerize we could not polymerize you could not polymerize they could not polymerize	I could not be polymerizing you could not be polymerizing he could not be polymerizing we could not be polymerizing you could not be polymerizing they could not be polymerizing
Perfect	V-ing perfect
I could not have polymerized you could not have polymerized he could not have polymerized we could not have polymerized you could not have polymerized they could not have polymerized	I could not have been polymerizing you could not have been polymerizing he could not have been polymerizing we could not have been polymerizing you could not have been polymerizing they could not have been polymerizing

Interrogative form

Simple form	V-ing form
could I polymerize? could you polymerize? could he polymerize? could we polymerize? could you polymerize? could they polymerize?	could I be polymerizing? could you be polymerizing? could he be polymerizing? could we be polymerizing? could you be polymerizing? could they be polymerizing?
Perfect	V-ing perfect
could I have polymerized? could you have polymerized? could he have polymerized? could we have polymerized? could you have polymerized? could they have polymerized?	could I have been polymerizing? could you have been polymerizing? could he have been polymerizing? could we have been polymerizing? could you have been polymerizing? could they have been polymerizing?

Interro-negative form

Simple form	V-ing form
could I not polymerize? could you not polymerize? could he not polymerize? could we not polymerize? could you not polymerize? could they not polymerize?	could I not be polymerizing? could you not be polymerizing? could he not be polymerizing? could we not be polymerizing? could you not be polymerizing? could they not be polymerizing?
Perfect	V-ing perfect
could I not have polymerized? could you not have polymerized? could he not have polymerized? could we not have polymerized? could you not have polymerized? could they not have polymerized?	could I not have been polymerizing? could you not have been polymerizing? could he not have been polymerizing? could we not have been polymerizing? could you not have been polymerizing? could they not have been polymerizing?