English verb conjugation COULD UPSTAGE

Regular verb: upstage - upstaged - upstaged

Affirmation

Simple form

I could upstage
you could upstage
she could upstage
we could upstage
you could upstage
they could upstage

V-ing form

I could be upstaging
you could be upstaging
she could be upstaging
we could be upstaging
you could be upstaging
they could be upstaging

Perfect

I could have upstaged
you could have upstaged
she could have upstaged
we could have upstaged
you could have upstaged
they could have upstaged

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I upstage?
could you upstage?
could she upstage?
could we upstage?
could you upstage?
could they upstage?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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