English verb conjugation COULD WORSEN

Regular verb: worsen - worsened - worsened

Affirmation

Simple form

I could worsen
you could worsen
he could worsen
we could worsen
you could worsen
they could worsen

V-ing form

I could be worsening
you could be worsening
he could be worsening
we could be worsening
you could be worsening
they could be worsening

Perfect

I could have worsened
you could have worsened
he could have worsened
we could have worsened
you could have worsened
they could have worsened

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I worsen?
could you worsen?
could he worsen?
could we worsen?
could you worsen?
could they worsen?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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