English verb conjugation OUGHT TO KNOW

Irregular verb: know - knew - known

Affirmation

Simple form

I ought to know
you ought to know
he ought to know
we ought to know
you ought to know
they ought to know

V-ing form

I ought to be knowing
you ought to be knowing
he ought to be knowing
we ought to be knowing
you ought to be knowing
they ought to be knowing

Perfect

I ought to have known
you ought to have known
he ought to have known
we ought to have known
you ought to have known
they ought to have known

V-ing perfect

I ought to have been knowing
you ought to have been knowing
he ought to have been knowing
we ought to have been knowing
you ought to have been knowing
they ought to have been knowing

Negation

Simple form

I ought not to know
you ought not to know
he ought not to know
we ought not to know
you ought not to know
they ought not to know

V-ing form

I ought not to knowing
you ought not to knowing
he ought not to knowing
we ought not to knowing
you ought not to knowing
they ought not to knowing

Perfect

I ought not to have known
you ought not to have known
he ought not to have known
we ought not to have known
you ought not to have known
they ought not to have known

V-ing perfect

I ought not to have been knowing
you ought not to have been knowing
he ought not to have been knowing
we ought not to have been knowing
you ought not to have been knowing
they ought not to have been knowing

Interrogative form

Simple form

ought to I know?
ought to you know?
ought to he know?
ought to we know?
ought to you know?
ought to they know?

V-ing form

ought to I be knowing?
ought to you be knowing?
ought to he be knowing?
ought to we be knowing?
ought to you be knowing?
ought to they be knowing?

Perfect

ought to I have known?
ought to you have known?
ought to he have known?
ought to we have known?
ought to you have known?
ought to they have known?

V-ing perfect

ought to I have been knowing?
ought to you have been knowing?
ought to he have been knowing?
ought to we have been knowing?
ought to you have been knowing?
ought to they have been knowing?

Interro-negative form

Simple form

ought I not to know?
ought you not to know?
ought he not to know?
ought we not to know?
ought you not to know?
ought they not to know?

V-ing form

ought I not to be knowing?
ought you not to be knowing?
ought he not to be knowing?
ought we not to be knowing?
ought you not to be knowing?
ought they not to be knowing?

Perfect

ought I not to have known?
ought you not to have known?
ought he not to have known?
ought we not to have known?
ought you not to have known?
ought they not to have known?

V-ing perfect

ought I not to have been knowing?
ought you not to have been knowing?
ought he not to have been knowing?
ought we not to have been knowing?
ought you not to have been knowing?
ought they not to have been knowing?

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