English verb conjugation COULD EXTEMPORISE

Regular verb: extemporise - extemporised - extemporised

Affirmation

Simple form

I could extemporise
you could extemporise
he could extemporise
we could extemporise
you could extemporise
they could extemporise

V-ing form

I could be extemporising
you could be extemporising
he could be extemporising
we could be extemporising
you could be extemporising
they could be extemporising

Perfect

I could have extemporised
you could have extemporised
he could have extemporised
we could have extemporised
you could have extemporised
they could have extemporised

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I extemporise?
could you extemporise?
could he extemporise?
could we extemporise?
could you extemporise?
could they extemporise?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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