English verb conjugation COULD SUBVENE

Regular verb: subvene - subvened - subvened

Affirmation

Simple form

I could subvene
you could subvene
he could subvene
we could subvene
you could subvene
they could subvene

V-ing form

I could be subvening
you could be subvening
he could be subvening
we could be subvening
you could be subvening
they could be subvening

Perfect

I could have subvened
you could have subvened
he could have subvened
we could have subvened
you could have subvened
they could have subvened

V-ing perfect

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

Negation

Simple form

I couldn't subvene
you couldn't subvene
he couldn't subvene
we couldn't subvene
you couldn't subvene
they couldn't subvene

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I subvene?
could you subvene?
could he subvene?
could we subvene?
could you subvene?
could they subvene?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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