English verb conjugation COULD POLYMERISE

Regular verb: polymerise - polymerised - polymerised

Affirmation

Simple form

I could polymerise
you could polymerise
he could polymerise
we could polymerise
you could polymerise
they could polymerise

V-ing form

I could be polymerising
you could be polymerising
he could be polymerising
we could be polymerising
you could be polymerising
they could be polymerising

Perfect

I could have polymerised
you could have polymerised
he could have polymerised
we could have polymerised
you could have polymerised
they could have polymerised

V-ing perfect

I could have been polymerising
you could have been polymerising
he could have been polymerising
we could have been polymerising
you could have been polymerising
they could have been polymerising

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I polymerise?
could you polymerise?
could he polymerise?
could we polymerise?
could you polymerise?
could they polymerise?

V-ing form

could I be polymerising?
could you be polymerising?
could he be polymerising?
could we be polymerising?
could you be polymerising?
could they be polymerising?

Perfect

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

V-ing perfect

could I have been polymerising?
could you have been polymerising?
could he have been polymerising?
could we have been polymerising?
could you have been polymerising?
could they have been polymerising?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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