Node ので

Particle meaning: because (of), on account of, as, since.

The statement preceding node  should be objective, whereas kara  is used to indicate the speakers subjective judgement or assistance.

1. after adjective or noun + na

今日は雨なので映画を見よう。

Kyou wa ame na node eiga o myou.

I'll see a movie today since it is rainy.

彼女は病気なので来られません。

Kanojo wa byouki na node koraremasen.

 she is unable to come because she is sick.

2.  after dictionary form of verb/ adjective

用事があるのでもう失礼します。

Youji ga aru node mou shitsurei shimasu.

do I have any day dreaming, I'll be leaving now.

この本は面白いので勧めます。

Kono hon wa omoshiroi node susumemasu.

I recommend this book to you because it is interesting.

(if kara  replaced node,  the reason would be ” because I think the book is interesting”)

3.actors nai-form a verb/ adjective

彼女がいかないので私も行きません。

Kanojo ga ikanai node watashi mo ikimasen.

Since she's not going, I won't go either.

そんなに長くないので読むにはあまり時間がかかりません。

Sonna ni nagakunai node yomu ni wa amari jikan ga kakarimasen.

It's not very long, so it won't take too long to read.

4. After ta-form a verb/ adjective

雨が降っていたのでゴルフはやめました。

Amega futte ita node gorufu wa yamemashita.

we stopped playing golf because it was raining.

あのカメラは高かったので買いませんでした。 

Ano kamera wa takakatta node kaimasen deshita.

I didn't buy that camera because it was expensive.

-> see also: kara