# Reason

## ので

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + だ</span></p>
</div>
	<p class="right">+ ので</p>
</div>

Used after a reason, to explain the consequence. Means "because of", "since".
It is more objective than から: it expresses a situation that exists, and that is outside of one's control. For this reason, it can also be perceived as more polite.

> [!info] Example
> 雨な==ので==傘を持ってきてください。
> Since it is raining, please bring an umbrella.

## から

See [[🔰 Particles (2)#Because]].
It is more subjective than ので: it expresses more personal needs/actions/opinions.

## ことから

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + の</span></p>
</div>
	<p class="right">+ ことから</p>
</div>

Means "based on the fact that". Most formal than から, and puts an emphasis on it being true (objective information).

> [!info] Example
> {部屋|へや}から{音|おと}がある==ことから==、{誰|だれ}かいるはずです。
> From the fact that there is sound coming from the room, someone must be there.

## んです・のです

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + だ</span></p>
</div>
	<p class="right">+ んだ・んです・のだ・のです</p>
</div>

It is used to explain or put emphasis on something.
のだ・のです is a bit more formal than んだ・んです.
It is only used with nouns when asking questions.

> [!info] Example
> {良|よ}い{仕事|しごと}な==のです==か。
> Is it a good job?
> 
> もう言った==んだ==よ！
> I've already told you!

## のは・のが

Means "the reason for A is B", "doing A is B".
See [[Transformation#のは・のが sentence as noun]].

## なぜなら～から

<div class="usage">
<div class="">
	<p><span class="box">result</span></p>
</div>
	<p class="r"> + なぜなら + </p>
<div class="">
	<p><span class="box">reason</span></p>
</div>
	<p class="r">+ から</p>
</div>

Means "the reason is".
There are three variations:
* なぜなら(ば)
* なぜかというと
* どうしてかというと

> [!info] Example
> それを{言|い}えない！==どうしてかというと=={秘密|ひみつ}だ==から==。
> I cannot tell you that! Why, because it's a secret.

## そのために

<div class="usage">
<div class="">
	<p><span class="box">goal</span></p>
</div>
	<p class="r"> + そのため(に) + </p>
<div class="">
	<p><span class="box">action</span></p>
</div>
</div>

Means "for that reason", "because of".
See also [[Connectors - in order to#ために]].

> [!info] Example
> {丸|まる}い{日|にち}{働|はたら}いていた、==そのために=={今|いま}{寝|ね}に行きます。
> I worked the whole day. For that reason, I'm going to bed.
> 
> {日本|にほん}に行きたい。==そのために==、{日本語|にほんご}をちゃんと{勉強|べんきょう}しています。
> I want to go to Japan. In order to do so, I'm studying seriously.

## わけだ・わけではない

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + の</span></p>
</div>
	<p class="right">+ わけだ・わけではない</p>
</div>

わけだ・わけです means "for that reason", "as you'd expect".
わけではない・わけじゃない means "it doesn't mean that".

> [!info] Example
> {毎日|まいにち}{料理|りょうり}を{作|つく}るからうまくになった==わけだ==。
> I got good at cooking because I cook every day.

See also [[Certainty#わけがない]].

## からこそ (NEW!)

Means "precisely because". Made with the [[🔰 Particles (2)#Because|から]] and [[🔰 Particles (2)#こそ|こそ]] particles, to emphasize the reason.

> [!info] Example
> {清潔|せいけつ}==だからこそ=={快適|かいてき}です。
> It's precisely because it's clean that it is comfortable.

⚠ Uses the same rules as [[🔰 Particles (2)#Because|から]].

## ことだから (NEW!)

Means "exactly because". Usually used to talk about something characteristic to someone.
Used with nouns + の.

> [!info] Example
> {彼女|かのじょ}==のことだから==、{必|かなら}ず{来|き}ます。
> It's precisely because it's her that I'm sure she'll come.

## につき (NEW!)

Means "due to". Used when a change happens. It is formal.

> [!info] Example
> {年次|ねんじ}{休業|きゅうぎょう}==につき==、セールが{開催|かいさい}{中|ちゅう}。
> Due to the annual closure, a sale is being held.

## もの・もん (NEW!)

<div class="usage">
<div class="left">
	<p><span class="box">V (+ んだ)</span></p>
	<p><span class="box">い-Adj (+ んだ)</span></p>
	<p><span class="box">な-Adj (+ なんだ)</span></p>
	<p><span class="box">N (+ なんだ)</span></p>
</div>
	<p class="right">+ もの・もん</p>
</div>

Means "because". It is usually casual.

> [!info] Example
> {具合|ぐあい}が{悪|わる}い。。。{臭|くさ}い==んだもの==。
> I don't feel well... because something stinks.

## ものだから (NEW!)

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + な</span></p>
</div>
	<p class="right">+ ものだから・ものですから・もんだから</p>
</div>

Means "because". Used to emphasize what has been said before, the reason for something, explaining something, or giving an excuse.

> [!info] Example
> {電車|でんしゃ}{事故|じこ}があった==ものだから==、{私|わたし}は{遅|おく}れてしまった。
> There was a train accident, so I was late.

## Positive

### おかげで

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + の</span></p>
</div>
	<p class="right">+ おかげで</p>
</div>

Means "because of". Used for positive contexts, like "thanks to".

> [!info] Example
> あなたの==おかげで=={勝|か}った。
> We won because of you.

### だけあって (NEW!)

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N</span></p>
</div>
	<p class="right">+ だけあって・だけのことはあって</p>
</div>

Means "being the case", "as expected", "precisely because". Only used for positive results.

> [!info] Examples
> {彼女|かのじょ}==だけあって==、{美|うつく}しい{服|ふく}を{着|き}た。
> As expected of her, she wore beautiful clothes.

## Negative

### せいで

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N + の</span></p>
</div>
	<p class="right">+ せいで</p>
</div>

Means "because of". Mostly used for negative contexts, to blame, etc.

> [!info] Example
> あなたの==せいで=={負|ま}けた。
> We lost because of you.

### ばかりに (NEW!)

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + な</span></p>
	<p><span class="box">N</span></p>
</div>
	<p class="right">+ ばかりに</p>
</div>

Means "simply because". Usually used for negative results.

> [!info] Example
> {彼|かれ}はたった{一|ひと}つミスをした==ばかりに=={解雇|かいこ}されました。
> He was fired after making only one mistake.

## Since... it's obvious that...

All three patterns mean "because A... obviously B". They have slight differences.
Used when talking about things like decision, judgement, etc.

### 上は (NEW!)

{上|うえ}は is the most formal form.
Used with verbs (る, た forms).

> [!info] Example
> {先生|せんせい}が{言|い}った==上は=={必|かなら}ずする。
> Since the teacher said it, I will definitely do it.

### 以上は (NEW!)

<div class="usage">
<div class="left">
	<p><span class="box">V</span></p>
	<p><span class="box">い-Adj</span></p>
	<p><span class="box">な-Adj + である</span></p>
	<p><span class="box">N + である</span></p>
</div>
	<p class="right">+ 以上は</p>
</div>

{以上|いじょう}は is formal.
Only with this form, both parts of the sentence can talk about different persons.

> [!info] Example
> {彼|かれ}がまだ{来|き}ません==以上は==、{今|いま}{帰|かえ}ります。
> Since he still have not come, I'm going home now.

### からには (NEW!)

It is used in conversations. Can only be used for talking about oneself. Generally used for positive results.
Used with verbs.

> [!info] Examples
> お{金|かね}がある==からには==、いい{家|いえ}を{買|か}うつもりです。
> Since I have money, I plan to buy a nice house.