English verb conjugation COULD DECELERATE

Regular verb: decelerate - decelerated - decelerated

Affirmation

Simple form

I could decelerate
you could decelerate
she could decelerate
we could decelerate
you could decelerate
they could decelerate

V-ing form

I could be decelerating
you could be decelerating
she could be decelerating
we could be decelerating
you could be decelerating
they could be decelerating

Perfect

I could have decelerated
you could have decelerated
she could have decelerated
we could have decelerated
you could have decelerated
they could have decelerated

V-ing perfect

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

Negation

Simple form

I couldn't decelerate
you couldn't decelerate
she couldn't decelerate
we couldn't decelerate
you couldn't decelerate
they couldn't decelerate

V-ing form

I couldn't be decelerating
you couldn't be decelerating
she couldn't be decelerating
we couldn't be decelerating
you couldn't be decelerating
they couldn't be decelerating

Perfect

I couldn't have decelerated
you couldn't have decelerated
she couldn't have decelerated
we couldn't have decelerated
you couldn't have decelerated
they couldn't have decelerated

V-ing perfect

I couldn't have been decelerating
you couldn't have been decelerating
she couldn't have been decelerating
we couldn't have been decelerating
you couldn't have been decelerating
they couldn't have been decelerating

Interrogative form

Simple form

could I decelerate?
could you decelerate?
could she decelerate?
could we decelerate?
could you decelerate?
could they decelerate?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

couldn't I decelerate?
couldn't you decelerate?
couldn't she decelerate?
couldn't we decelerate?
couldn't you decelerate?
couldn't they decelerate?

V-ing form

couldn't I be decelerating?
couldn't you be decelerating?
couldn't she be decelerating?
couldn't we be decelerating?
couldn't you be decelerating?
couldn't they be decelerating?

Perfect

couldn't I have decelerated?
couldn't you have decelerated?
couldn't she have decelerated?
couldn't we have decelerated?
couldn't you have decelerated?
couldn't they have decelerated?

V-ing perfect

couldn't I have been decelerating?
couldn't you have been decelerating?
couldn't she have been decelerating?
couldn't we have been decelerating?
couldn't you have been decelerating?
couldn't they have been decelerating?

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