English verb conjugation COULD POLYMERIZE

Regular verb: polymerize - polymerized - polymerized

Affirmation

Simple form

I could polymerize
you could polymerize
he could polymerize
we could polymerize
you could polymerize
they could polymerize

V-ing form

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

I could have polymerized
you could have polymerized
he could have polymerized
we could have polymerized
you could have polymerized
they could have polymerized

V-ing perfect

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

I couldn't polymerize
you couldn't polymerize
he couldn't polymerize
we couldn't polymerize
you couldn't polymerize
they couldn't polymerize

V-ing form

I couldn't be polymerizing
you couldn't be polymerizing
he couldn't be polymerizing
we couldn't be polymerizing
you couldn't be polymerizing
they couldn't be polymerizing

Perfect

I couldn't have polymerized
you couldn't have polymerized
he couldn't have polymerized
we couldn't have polymerized
you couldn't have polymerized
they couldn't have polymerized

V-ing perfect

I couldn't have been polymerizing
you couldn't have been polymerizing
he couldn't have been polymerizing
we couldn't have been polymerizing
you couldn't have been polymerizing
they couldn't have been polymerizing

Interrogative form

Simple form

could I polymerize?
could you polymerize?
could he polymerize?
could we polymerize?
could you polymerize?
could they polymerize?

V-ing form

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

could I have polymerized?
could you have polymerized?
could he have polymerized?
could we have polymerized?
could you have polymerized?
could they have polymerized?

V-ing perfect

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

couldn't I polymerize?
couldn't you polymerize?
couldn't he polymerize?
couldn't we polymerize?
couldn't you polymerize?
couldn't they polymerize?

V-ing form

couldn't I be polymerizing?
couldn't you be polymerizing?
couldn't he be polymerizing?
couldn't we be polymerizing?
couldn't you be polymerizing?
couldn't they be polymerizing?

Perfect

couldn't I have polymerized?
couldn't you have polymerized?
couldn't he have polymerized?
couldn't we have polymerized?
couldn't you have polymerized?
couldn't they have polymerized?

V-ing perfect

couldn't I have been polymerizing?
couldn't you have been polymerizing?
couldn't he have been polymerizing?
couldn't we have been polymerizing?
couldn't you have been polymerizing?
couldn't they have been polymerizing?

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