英和和英

I have no clue.

I have no idea.

I don't know anything at all.

I don't know anything about ～ .

You're asking the wrong person.

I wish I can help you, but I don't know

not made known

not known

I don't know

I don't know

I do not know well

I am not quite sure.

I do not know it at all

not informed

the state of being totally unfamiliar with something

(of something to happen) without one's knowledge

I did not know it

Who knows?

God knows.

I didn't know

I didn't know

I don't know it at all

He is an utter stranger―a complete stranger―a perfect stranger―to me.

I don't know either

without knowing it

not aware

the condition of not yet knowing

I don't know.

I don't quite know.

I know nothing