知られない
知られない
よくは知らない
よくは知らない
I know nothing
I do not know anything.
知らないわ。
知らないとさ
〜を知らない
I do not know for certain.
全く知らないこと
the state of being totally unfamiliar with something
I don't know anything at all.
I don't know anything about ~ .
I wish I can help you, but I don't know
I do not know for a certainty.