～ので
Because: softer and more polite
You’ll be able to give reasons more softly and politely in formal or delicate situations.
明日は早く起きるので、今日は早く寝ます。
ashita wa hayaku okiru node, kyou wa hayaku nemasu.
What do you think this sentence means?
Because I’m getting up early tomorrow, I’ll go to bed early today.
Give a reason in a softer, explanatory way
Use ～ので to connect a reason to a result. Compared with から, it often presents the reason more gently or as background information.
雨が降っているので、家にいます。
ame ga futte iru node, ie ni imasu.
Because it is raining, I am staying home.
After verbs and い-adjectives
Use a plain verb or い-adjective form before ので.
明日早く起きるので、もう寝ます。
ashita hayaku okiru node, mou nemasu.
Because I have to get up early tomorrow, I am going to bed now.
この店は安いので、よく来ます。
kono mise wa yasui node, yoku kimasu.
Because this shop is cheap, I come here often.
少し寒いので、窓を閉めます。
sukoshi samui node, mado o shimemasu.
Because it is a little cold, I will close the window.
After nouns and な-adjectives
Use なので after a noun or な-adjective.
学生なので、学割が使えます。
gakusei na node, gakuwari ga tsukaemasu.
Because I am a student, I can use the student discount.
静かなので、このカフェが好きです。
shizuka na node, kono kafe ga suki desu.
Because it is quiet, I like this café.
今日は休みなので、家にいます。
kyou wa yasumi na node, ie ni imasu.
Because today is a day off, I am staying home.
～から vs ～ので
から states your reason plainly and can sound like you are pressing a point. ので presents it as circumstance, which is softer and safer when asking a favour or making a request.
ので, softer
少し寒いので、窓を閉めてください。
sukoshi samui node, mado o shimete kudasai.
Because it is a little cold, please close the window.
Presents the reason gently as background circumstance, softening the request.
から, direct
少し寒いから、窓を閉めてください。
sukoshi samui kara, mado o shimete kudasai.
Because it is a little cold, please close the window.
States the reason more directly and assertively.
雨が降っているので、家にいます。
ame ga futte iru node, ie ni imasu.
Because it is raining, I am staying home.
今日は寒いので、コートを着ます。
kyou wa samui node, kooto o kimasu.
Because it is cold today, I will wear a coat.
この水は汚いので、飲まない方がいいです。
kono mizu wa kitanai node, nomanai hou ga ii desu.
You should not drink this water because it is dirty.
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