TAKOBOTO

since
since this is secret

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このじょうほうはうちうちにしらされたものなので、あなたになにもおしえることはできない

This information was given to me in confidence, so I can't tell you anything.

それはしんじつなのでいまさらよんのごのいってもはじまらない

Since it is quite true, grumbling about it now does not get you anywhere.

あんなにこどもがすきなので、スーはせんせいになるべきだ。

Liking children the way she does Sue should become a teacher.

いすをどかしてください。じゃまなので。

Please put those chairs away. As they are in the way.

イヤホンをたのんだはずなのですが。

The thing is , I asked for earphones.

おてんきなので、つりにいきたいようなきがする。

It is a fine day and I feel like going fishing.

おかあさんがびょうきなので、きょうはおとうさんがりょうりをします。

Because my mother is sick, my father will cook today.

こういうわけでわたしはあなたにはんたいなのです。

This is the reason I disagree with you.

can someone explain the difference between this and just [node] ?

dc

I think it is simply that if the clause before node is a noun, such as in this example, then you use 'nanode'. If it is a verb then you only use 'node'.

As far as I know, 'na' seems to be related to the copula 'da', and can be seen in other similar circumstances such as 'nanoni'. Exactly why it changes to na instead of da I don't know.

Contrast 'sou da to omou',and 'sou na node...'

bi-ru

な is 連体形 of 助動詞「だ」which inflect as だろ、で、だっ、だ、な、なら but な only connects to particles の、ので、のに.

bamboo4