English verb conjugation COULD UMBER

Regular verb: umber - umbered - umbered

Affirmation

Simple form

I could umber
you could umber
he could umber
we could umber
you could umber
they could umber

V-ing form

I could be umbering
you could be umbering
he could be umbering
we could be umbering
you could be umbering
they could be umbering

Perfect

I could have umbered
you could have umbered
he could have umbered
we could have umbered
you could have umbered
they could have umbered

V-ing perfect

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

Negation

Simple form

I could not umber
you could not umber
he could not umber
we could not umber
you could not umber
they could not umber

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I umber?
could you umber?
could he umber?
could we umber?
could you umber?
could they umber?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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