Hello.

My name is Youngchang Kwon.

English name is Daniel.

I am native korean.

If you have question, ask me.

I will try to answer you.

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안녕하심니까?

안녕하십니까? : Hello?

저도요. 나도요 : Me too.

저 : I (Me)   -  to older than you.

/jo/

나 : I (Me)   -  to your friends. or younger than you.

/na/

depends if you wa nt to be formal or not