English verb conjugation COULD POLYMERISE

Regular verb: polymerise - polymerised - polymerised

Affirmation

Simple form

I could polymerise
you could polymerise
she could polymerise
we could polymerise
you could polymerise
they could polymerise

V-ing form

I could be polymerising
you could be polymerising
she could be polymerising
we could be polymerising
you could be polymerising
they could be polymerising

Perfect

I could have polymerised
you could have polymerised
she 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
she 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
she 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
she 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
she 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
she 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 she polymerise?
could we polymerise?
could you polymerise?
could they polymerise?

V-ing form

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

Perfect

could I have polymerised?
could you have polymerised?
could she 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 she 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 she 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 she 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 she 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 she 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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