English verb conjugation COULD KNUCKLE

Regular verb: knuckle - knuckled - knuckled

Affirmation

Simple form

I could knuckle
you could knuckle
she could knuckle
we could knuckle
you could knuckle
they could knuckle

V-ing form

I could be knuckling
you could be knuckling
she could be knuckling
we could be knuckling
you could be knuckling
they could be knuckling

Perfect

I could have knuckled
you could have knuckled
she could have knuckled
we could have knuckled
you could have knuckled
they could have knuckled

V-ing perfect

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

Negation

Simple form

I could not knuckle
you could not knuckle
she could not knuckle
we could not knuckle
you could not knuckle
they could not knuckle

V-ing form

I could not be knuckling
you could not be knuckling
she could not be knuckling
we could not be knuckling
you could not be knuckling
they could not be knuckling

Perfect

I could not have knuckled
you could not have knuckled
she could not have knuckled
we could not have knuckled
you could not have knuckled
they could not have knuckled

V-ing perfect

I could not have been knuckling
you could not have been knuckling
she could not have been knuckling
we could not have been knuckling
you could not have been knuckling
they could not have been knuckling

Interrogative form

Simple form

could I knuckle?
could you knuckle?
could she knuckle?
could we knuckle?
could you knuckle?
could they knuckle?

V-ing form

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

Perfect

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

V-ing perfect

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

Interro-negative form

Simple form

could I not knuckle?
could you not knuckle?
could she not knuckle?
could we not knuckle?
could you not knuckle?
could they not knuckle?

V-ing form

could I not be knuckling?
could you not be knuckling?
could she not be knuckling?
could we not be knuckling?
could you not be knuckling?
could they not be knuckling?

Perfect

could I not have knuckled?
could you not have knuckled?
could she not have knuckled?
could we not have knuckled?
could you not have knuckled?
could they not have knuckled?

V-ing perfect

could I not have been knuckling?
could you not have been knuckling?
could she not have been knuckling?
could we not have been knuckling?
could you not have been knuckling?
could they not have been knuckling?

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