English verb conjugation COULD MUTTER

Regular verb: mutter - muttered - muttered

Affirmation

Simple form

I could mutter
you could mutter
he could mutter
we could mutter
you could mutter
they could mutter

V-ing form

I could be muttering
you could be muttering
he could be muttering
we could be muttering
you could be muttering
they could be muttering

Perfect

I could have muttered
you could have muttered
he could have muttered
we could have muttered
you could have muttered
they could have muttered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I mutter?
could you mutter?
could he mutter?
could we mutter?
could you mutter?
could they mutter?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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