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 couldn't shift
you couldn't shift
he couldn't shift
we couldn't shift
you couldn't shift
they couldn't shift

V-ing form

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

Perfect

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

V-ing perfect

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

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

V-ing form

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

Perfect

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

V-ing perfect

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

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