How to explain the reason using ので

In this lesson, I will introduce you the expression ので, which is quite similar to から.
ので is also used to give the reason for the situation.

<Example Sentences>
きのう　のみすぎたので　あたま　が　いたいです。
Because I drank too much yesterday, I have a headache.

きのう　おそく　ねたので　ねむいです。
I went to bed late last night, I am sleepy.

きょう　は　クリスマスなので　にぎやかです。
Because today is Christmas, it's crowded.
きのう　は　クリスマスだったので　にぎやかでした。
Because yesterday was Christmas, it was crowded.

きょうと　は　きれいなので　また　いきたいです。
Because Kyoto is beautiful, I want to go there again.
きょうと　は　きれいだったので　また　いきたいです。
Because Kyoto was beautiful, I want to go there again.

この　ゲーム　は　たのしいので　また　やりましょう。
Because this video game is fun, let's play it again.
この　ゲーム　は　たのしかったので　また　やりましょう。
Because this video game was  fun, let's play it again.

References:
How to Explain the Reason by Using the Word "から"
https://anchor.fm/yuya-sato/episodes/How-to-Explain-the-Reason-by-Using-the-Word-enibdg

Expression for "too much" using すぎる
https://anchor.fm/yuya-sato/episodes/Expression-for-too-much-using-eol93n

Describing a Person's Feature
https://anchor.fm/yuya-sato/episodes/Describing-a-Persons-Feature-ennovs

Past Tense of Adjectives
https://anchor.fm/yuya-sato/episodes/Past-Tense-of-Adjectives-en9trh

How to say "Let's do something"
https://anchor.fm/yuya-sato/episodes/How-to-say-Lets-do-something-enh5ds

I want to do something
https://anchor.fm/yuya-sato/episodes/I-want-to-do-something-eod5r2

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