英和和英

a know-all

(of something to happen) without one's knowledge

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

get to know

I do not know well

I am not quite sure.

the state of being totally unfamiliar with something

I know nothing

I do not know anything.

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

I know him

I am acquainted with him.

in ignorance

I know very well.

the condition of not yet knowing

to be widely known

to have information in the mind

as you know

as you know

as you know

We shall see.

Who cares?

not aware or knowing

not widely known

made known