English verb conjugation COULD SPUTTER

Regular verb: sputter - sputtered - sputtered

Affirmation

Simple form

I could sputter
you could sputter
she could sputter
we could sputter
you could sputter
they could sputter

V-ing form

I could be sputtering
you could be sputtering
she could be sputtering
we could be sputtering
you could be sputtering
they could be sputtering

Perfect

I could have sputtered
you could have sputtered
she could have sputtered
we could have sputtered
you could have sputtered
they could have sputtered

V-ing perfect

I could have been sputtering
you could have been sputtering
she could have been sputtering
we could have been sputtering
you could have been sputtering
they could have been sputtering

Negation

Simple form

I could not sputter
you could not sputter
she could not sputter
we could not sputter
you could not sputter
they could not sputter

V-ing form

I could not be sputtering
you could not be sputtering
she could not be sputtering
we could not be sputtering
you could not be sputtering
they could not be sputtering

Perfect

I could not have sputtered
you could not have sputtered
she could not have sputtered
we could not have sputtered
you could not have sputtered
they could not have sputtered

V-ing perfect

I could not have been sputtering
you could not have been sputtering
she could not have been sputtering
we could not have been sputtering
you could not have been sputtering
they could not have been sputtering

Interrogative form

Simple form

could I sputter?
could you sputter?
could she sputter?
could we sputter?
could you sputter?
could they sputter?

V-ing form

could I be sputtering?
could you be sputtering?
could she be sputtering?
could we be sputtering?
could you be sputtering?
could they be sputtering?

Perfect

could I have sputtered?
could you have sputtered?
could she have sputtered?
could we have sputtered?
could you have sputtered?
could they have sputtered?

V-ing perfect

could I have been sputtering?
could you have been sputtering?
could she have been sputtering?
could we have been sputtering?
could you have been sputtering?
could they have been sputtering?

Interro-negative form

Simple form

could I not sputter?
could you not sputter?
could she not sputter?
could we not sputter?
could you not sputter?
could they not sputter?

V-ing form

could I not be sputtering?
could you not be sputtering?
could she not be sputtering?
could we not be sputtering?
could you not be sputtering?
could they not be sputtering?

Perfect

could I not have sputtered?
could you not have sputtered?
could she not have sputtered?
could we not have sputtered?
could you not have sputtered?
could they not have sputtered?

V-ing perfect

could I not have been sputtering?
could you not have been sputtering?
could she not have been sputtering?
could we not have been sputtering?
could you not have been sputtering?
could they not have been sputtering?

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