English verb conjugation COULD SPUTTER

Regular verb: sputter - sputtered - sputtered

Affirmation

Simple form

I could sputter
you could sputter
he could sputter
we could sputter
you could sputter
they could sputter

V-ing form

I could be sputtering
you could be sputtering
he could be sputtering
we could be sputtering
you could be sputtering
they could be sputtering

Perfect

I could have sputtered
you could have sputtered
he 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
he could have been sputtering
we could have been sputtering
you could have been sputtering
they could have been sputtering

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I sputter?
could you sputter?
could he sputter?
could we sputter?
could you sputter?
could they sputter?

V-ing form

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

Perfect

could I have sputtered?
could you have sputtered?
could he 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 he have been sputtering?
could we have been sputtering?
could you have been sputtering?
could they have been sputtering?

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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