English verb conjugation COULD GANGRENE

Regular verb: gangrene - gangrened - gangrened

Affirmation

Simple form

I could gangrene
you could gangrene
he could gangrene
we could gangrene
you could gangrene
they could gangrene

V-ing form

I could be gangrening
you could be gangrening
he could be gangrening
we could be gangrening
you could be gangrening
they could be gangrening

Perfect

I could have gangrened
you could have gangrened
he could have gangrened
we could have gangrened
you could have gangrened
they could have gangrened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I gangrene?
could you gangrene?
could he gangrene?
could we gangrene?
could you gangrene?
could they gangrene?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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