GrammarN22 min read2026-02-17

〜ことから

Express reasons, causes, or basis for judgment and conclusion

Meaning

ことから indicates the reason, cause, or basis for a judgment or conclusion. It is used to present a fact or condition as evidence or grounds for what follows. The speaker observes or considers something and uses it as a logical basis to explain or draw a conclusion about another matter.

Formation

Part of speechFormation
动词普通形ことから
い形容词ことから
な形容词な/である + ことから
名词ことから

Examples

  1. 羊の群れのように見えることから羊雲という名前になった。
    The name 'sheep cloud' originated from the fact that the cloud formation looks like a flock of sheep.

  2. この薬は開発期間が非常に長いことから、いやくひんとしての承認を受けることが可能とされている。
    Because this drug has an extremely long development period, it is able to receive approval as a pharmaceutical product.

  3. 首相の支持率が高いことから、国民は新しい政府に期待していることがわかります。
    From the fact that the Prime Minister's approval rating is high, we can understand that the people have high expectations for the new government.

Summary

  • Use ことから to present a fact, condition, or observation as logical grounds or evidence
  • Commonly used to explain origins, reasons, or to draw conclusions based on observable facts
  • Can be attached to verbs, i-adjectives, na-adjectives (with な/である), and nouns in their dictionary/plain forms

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