YOU SAID:

I don't know what to but so... hi.

INTO JAPANESE

何をすればいいのかわかりませんが...こんにちは。

BACK INTO ENGLISH

I do not know what to do ... Hello.

INTO JAPANESE

私は何をすべきかわからない...こんにちは。

BACK INTO ENGLISH

I do not know what to do ... Hello.