English verb conjugation COULD FESTOON

Regular verb: festoon - festooned - festooned

Affirmation

Simple form

I could festoon
you could festoon
he could festoon
we could festoon
you could festoon
they could festoon

V-ing form

I could be festooning
you could be festooning
he could be festooning
we could be festooning
you could be festooning
they could be festooning

Perfect

I could have festooned
you could have festooned
he could have festooned
we could have festooned
you could have festooned
they could have festooned

V-ing perfect

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

Negation

Simple form

I could not festoon
you could not festoon
he could not festoon
we could not festoon
you could not festoon
they could not festoon

V-ing form

I could not be festooning
you could not be festooning
he could not be festooning
we could not be festooning
you could not be festooning
they could not be festooning

Perfect

I could not have festooned
you could not have festooned
he could not have festooned
we could not have festooned
you could not have festooned
they could not have festooned

V-ing perfect

I could not have been festooning
you could not have been festooning
he could not have been festooning
we could not have been festooning
you could not have been festooning
they could not have been festooning

Interrogative form

Simple form

could I festoon?
could you festoon?
could he festoon?
could we festoon?
could you festoon?
could they festoon?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not festoon?
could you not festoon?
could he not festoon?
could we not festoon?
could you not festoon?
could they not festoon?

V-ing form

could I not be festooning?
could you not be festooning?
could he not be festooning?
could we not be festooning?
could you not be festooning?
could they not be festooning?

Perfect

could I not have festooned?
could you not have festooned?
could he not have festooned?
could we not have festooned?
could you not have festooned?
could they not have festooned?

V-ing perfect

could I not have been festooning?
could you not have been festooning?
could he not have been festooning?
could we not have been festooning?
could you not have been festooning?
could they not have been festooning?

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