English verb conjugation COULD EXTEMPORIZE

Regular verb: extemporize - extemporized - extemporized

Affirmation

Simple form

I could extemporize
you could extemporize
he could extemporize
we could extemporize
you could extemporize
they could extemporize

V-ing form

I could be extemporizing
you could be extemporizing
he could be extemporizing
we could be extemporizing
you could be extemporizing
they could be extemporizing

Perfect

I could have extemporized
you could have extemporized
he could have extemporized
we could have extemporized
you could have extemporized
they could have extemporized

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I extemporize?
could you extemporize?
could he extemporize?
could we extemporize?
could you extemporize?
could they extemporize?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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