English verb conjugation COULD MUMBLE

Regular verb: mumble - mumbled - mumbled

Affirmation

Simple form

I could mumble
you could mumble
he could mumble
we could mumble
you could mumble
they could mumble

V-ing form

I could be mumbling
you could be mumbling
he could be mumbling
we could be mumbling
you could be mumbling
they could be mumbling

Perfect

I could have mumbled
you could have mumbled
he could have mumbled
we could have mumbled
you could have mumbled
they could have mumbled

V-ing perfect

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

Negation

Simple form

I could not mumble
you could not mumble
he could not mumble
we could not mumble
you could not mumble
they could not mumble

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I mumble?
could you mumble?
could he mumble?
could we mumble?
could you mumble?
could they mumble?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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