Because

Add a reasoning for a statement

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Outline

KanjiVocabularyBecause

Kanji

Closed, Shut, Close

Detain, Halt, Stop

Clear up, Clear weather

Warm, Warmth

Vocabulary

ドア

Door

バス

Bus

大好き

Very likeable, Loveable

なぜ

Why

閉める

To close, To shut

留学

Studying abroad

晴れ

Sunny, Clear weather

暖かい

Warm, Considerate, Kind

Because

The grammar points から and ので are used to express the reasoning for a statement. The sentence order is always reason ので/から、conclusion。 in Japanese. This is the opposite to English when using “because” which is conclusion, because reason. It is probably easier to translate using “therefore” as the ordering is the same: reason, therefore, conclusion. Here are some examples:

Attaching ので/から to a verb
  • 明日あした東京とうきょうくから、いえにはいません。
  • I will go to Tokyo tomorrow, therefore, I will not be at home.
  • 明日あした東京とうきょうくので、いえにはいません。
  • I will go to Tokyo tomorrow, therefore, I will not be at home.
Attaching ので/から to a い-adjective
  • さむいから、ドアをめます。
  • It is cold, therefore, I will close the door.
  • さむいので、ドアをめます。
  • It is cold, therefore, I will close the door.
Attaching ので/から to a な-adjective
  • 英語えいご大好だいすきだから、留学りゅうがくします。
  • I like English very much, therefore, I will study abroad.
  • 英語えいご大好だいすきなので、留学りゅうがくします。
  • I like English very much, therefore, I will study abroad.
Attaching ので/から to a noun
  • 今日きょうれだから、あたたかいです。
  • It is sunny today, therefore, it's warm.
  • 今日きょうれなので、あたたかいです。
  • It is sunny today, therefore, it's warm.
から and ので can be attached to any part of speech, as shown above. However, when attaching to な-adjectives and nouns, the から becomes だから and the ので becomes なので.

When attaching the から and ので to a sentence with です instead of attaching them to a noun or adjective directly, the forms stay at から and ので:

  • Verb: くから → きますので
  • い-adjective: さむいので → さむいですので
  • な-adjective: 大好だいすきだから → 大好だいすきですから
  • Noun: れなので → れですので

When attaching the から and ので to verbs, they can take any form in terms of conjugation: plain, polite, affirmative, negative, or any form that we will learn in the future. Some examples would be 行きませんので, 食べましたから, 見なかったので, and 泳ぎましたので.

Another difference between the two is that から is often used when speaking and is more casual than ので. It expresses the speaker’s reasoning for the conclusion. Whereas ので is originally used to logically express a cause and the consequence thus is it more appropriate for formal situations than から. These are not absolute rules, but more a tendency of their usage.

から and ので in full sentences

Clauses with から and ので can be used as a full sentence rather than as a sub-clause in a sentence. This form is often used to add light reasoning and to answer a question while implying consequence. から is used more often in this way than the ので.

  • Q: なぜ学校がっこうやすみましたか?
  • Why did you take a day off school?
  • A: さむかったからです。
  • Because it was cold.
  • バスでました。電車でんしゃたかいから。
  • I came by bus. As trains are expensive.
  • うみきます。なつなので。
  • I will go to the sea. Because it's summer.
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