Meaning of なのです in Japanese

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Definition of なのです

なのです(nanodesu) · なんです(nandesu)

「あの方あのかたとあなたのご関係かんけいはどうなのですか」「私わたしは彼のかれ父です」

"What is your relationship to him?" "I'm his father."

He seems very hard on me, but he is really a very kind man.

あなたはどうして一人きりひとりきりなのですか。

Why are you alone?

You can spend your time in any way you want; it's your time, after all.

It may seem trivial to you, but for me it's worth paying attention to.

あなただけが頼りたよりなのです。

You are my only resort.

I know how busy you must be, but I need your answer to my last mail before I can proceed with the project. Can you take a moment and write me back?

Who has made you what you are now?

あなたが好きすきなのです。

I do love you.

「僕ぼくは水泳すいえいが下手へたです」「私わたしもそうなのです」

"I'm not good at swimming." "Neither am I."