English verb conjugation CAN KNOW

Irregular verb: know - knew - known

Affirmation

Simple form

I can know
you can know
he can know
we can know
you can know
they can know

V-ing form

I can be knowing
you can be knowing
he can be knowing
we can be knowing
you can be knowing
they can be knowing

Perfect

I can have known
you can have known
he can have known
we can have known
you can have known
they can have known

V-ing perfect

I can have been knowing
you can have been knowing
he can have been knowing
we can have been knowing
you can have been knowing
they can have been knowing

Negation

Simple form

I can't know
you can't know
he can't know
we can't know
you can't know
they can't know

V-ing form

I can't be knowing
you can't be knowing
he can't be knowing
we can't be knowing
you can't be knowing
they can't be knowing

Perfect

I can't have known
you can't have known
he can't have known
we can't have known
you can't have known
they can't have known

V-ing perfect

I can't have been knowing
you can't have been knowing
he can't have been knowing
we can't have been knowing
you can't have been knowing
they can't have been knowing

Interrogative form

Simple form

can I know?
can you know?
can he know?
can we know?
can you know?
can they know?

V-ing form

can I be knowing?
can you be knowing?
can he be knowing?
can we be knowing?
can you be knowing?
can they be knowing?

Perfect

can I have known?
can you have known?
can he have known?
can we have known?
can you have known?
can they have known?

V-ing perfect

can I have been knowing?
can you have been knowing?
can he have been knowing?
can we have been knowing?
can you have been knowing?
can they have been knowing?

Interro-negative form

Simple form

can't I know?
can't you know?
can't he know?
can't we know?
can't you know?
can't they know?

V-ing form

can't I be knowing?
can't you be knowing?
can't he be knowing?
can't we be knowing?
can't you be knowing?
can't they be knowing?

Perfect

can't I have known?
can't you have known?
can't he have known?
can't we have known?
can't you have known?
can't they have known?

V-ing perfect

can't I have been knowing?
can't you have been knowing?
can't he have been knowing?
can't we have been knowing?
can't you have been knowing?
can't they have been knowing?

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