〜に基づいて・に基づき・に基づいた

Based on...; On the basis of...; Grounded in...

1. Overview

「〜に基づいて」is used to indicate that something is grounded in or based on a certain principle, rule, or fact. This expression is often used in formal contexts, such as academic writing, legal documents, or reports.

2. Structure

1. Noun + に基づいて
   Used to express that an action or decision is based on a specific noun.

2. Verb (dictionary form) + に基づき
   Used to indicate that an action is carried out based on the principles or facts related to the verb.

3. Noun + に基づいた
   Used as an adjective to describe something that is based on a specific noun.

3. Usage Explanation

• Indicating a foundation:
  This expression emphasizes that a certain action, decision, or idea is supported by specific information or principles.

• English Translation:
  It can be translated as “based on...,” “on the basis of...,” or “grounded in...”.

4. Example Sentences

1. この計画は調査結果に基づいています。
   This plan is based on the research results.

2. 法律に基づいて、彼の行為は違法です。
   His actions are illegal based on the law.

3. 彼の意見は実際のデータに基づいています。
   His opinion is grounded in actual data.

4. この報告書は過去のデータに基づいて作成されました。
   This report was created based on historical data.

5. 新しい方針は研究に基づいたものです。
   The new policy is based on research.

5. Key Points to Note

• Formality:
  「〜に基づいて」is often used in formal situations and is appropriate for academic and professional contexts.

• Variations:
  The different forms (に基づいて, に基づき, に基づいた) can be used interchangeably depending on the grammatical structure needed.

6. Similar Grammar

• 〜に依拠して: Indicates reliance on something for support or justification.
  • Example: その決定は専門家の意見に依拠している。
    The decision relies on the opinions of experts.

7. Alternative Grammar

• 〜に従って: Indicates that something is done according to a certain guideline or principle.
  • Example: ルールに従って行動します。
    I will act according to the rules.

8. Summary

「〜に基づいて」is a versatile expression used to indicate that an action, idea, or decision is grounded in specific information, principles, or rules. It is commonly used in formal contexts, providing a clear foundation for the statements made.