English verb conjugation COULD UPSHIFT

Regular verb: upshift - upshifted - upshifted

Affirmation

Simple form

I could upshift
you could upshift
she could upshift
we could upshift
you could upshift
they could upshift

V-ing form

I could be upshifting
you could be upshifting
she could be upshifting
we could be upshifting
you could be upshifting
they could be upshifting

Perfect

I could have upshifted
you could have upshifted
she could have upshifted
we could have upshifted
you could have upshifted
they could have upshifted

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I upshift?
could you upshift?
could she upshift?
could we upshift?
could you upshift?
could they upshift?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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