English verb conjugation COULD SHIFT

Regular verb: shift - shifted - shifted

Affirmation

Simple form

I could shift
you could shift
he could shift
we could shift
you could shift
they could shift

V-ing form

I could be shifting
you could be shifting
he could be shifting
we could be shifting
you could be shifting
they could be shifting

Perfect

I could have shifted
you could have shifted
he could have shifted
we could have shifted
you could have shifted
they could have shifted

V-ing perfect

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

Negation

Simple form

I could not shift
you could not shift
he could not shift
we could not shift
you could not shift
they could not shift

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I shift?
could you shift?
could he shift?
could we shift?
could you shift?
could they shift?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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