How to Say “Based On” in Japanese

に基づいて
ni motozuite
The Japanese phrase for "based on" is に基づいて, romanized as ni motozuite.

How does it change in a sentence?

The form に基づいて is the conjunctive te-form used to connect the phrase to a following action or state, such as "based on X, we did Y". Another form, に基づいた, is an attributive form used to modify a noun directly, as in "a story based on facts".

How do you pronounce it?

ni motozuite

Did you know?

  • If you use に基づいて to describe a movie based on a true story, you are emphasizing the accuracy of the facts. To emphasize the emotional inspiration, a Japanese speaker might use をもとにした instead.
  • The verb もとづく comes from the word もと, meaning 'root' or 'origin'. This gives the phrase the literal feeling of something growing from a foundation rather than just being 'based on' an idea.
  • The phrase is rarely used in casual conversation. In daily speech, Japanese speakers typically use the simpler 〜から or 〜ので to explain the basis for an action.

Examples in context

  • 実話に基づいています。
    It's based on a true story.
    This sentence is useful for saying something is based on a true story using に基づいて.
    Tatoeba #11741371 by small_snow, translation #2217150 by Hybrid
  • これは事実に基づいている。
    This is based on fact.
    This sentence is useful for saying something is based on fact using に基づいて.
    Tatoeba #218288 by bunbuku, translation #55600 by CK
  • その劇は実話に基づいていた。
    The play was based on a true story.
    This sentence is useful for saying a play was based on a true story using に基づいて.
    Tatoeba #211159 by bunbuku, translation #48433 by CK
  • このレポートは最新の研究に基づいています。
    This report is based on the latest research.
  • 彼の小説は実際の出来事を基にしています。
    His novel is based on actual events.
  • 映画のストーリーは彼女の経験に基づいているんだ。
    The story of the movie is based on her experience.
  • 9 more sentences on Tatoeba

Example conversation

Two friends are discussing a movie they just watched.

  1. 陽葵 Himari

    この映画は、古い地図に基づいて作られたの?
    Kono eiga wa, furui chizu ni motozuite tsukurareta no?
    Was this movie made based on an old map?
  2. 陽太 Yota

    うん、その地図に基づいて物語が展開するんだ。
    Un, sono chizu ni motozuite monogatari ga tenkai suru nda.
    Yeah, the story unfolds based on that map.
  3. 陽葵 Himari

    陽太君、詳しい設定を知っているのね。
    Hinata-kun, kuwashii settei o shitte iru no ne.
    Hinata, you know the detailed settings, don't you?
  4. 陽太 Yota

    陽葵ちゃん、実は僕もさっき調べたんだ。
    Himari-chan, jitsu wa boku mo sakki shirabeta nda.
    Himari, actually, I just looked it up a moment ago.

Sources

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Gabrielle Margaret
Gabrielle MargaretHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.
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