English verb conjugation COULD KNACKER

Regular verb: knacker - knackered - knackered

Affirmation

Simple form

I could knacker
you could knacker
he could knacker
we could knacker
you could knacker
they could knacker

V-ing form

I could be knackering
you could be knackering
he could be knackering
we could be knackering
you could be knackering
they could be knackering

Perfect

I could have knackered
you could have knackered
he could have knackered
we could have knackered
you could have knackered
they could have knackered

V-ing perfect

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

Negation

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

Interrogative form

Simple form

could I knacker?
could you knacker?
could he knacker?
could we knacker?
could you knacker?
could they knacker?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

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

V-ing form

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

Perfect

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

V-ing perfect

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

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