基づく

1. Origins, structure, and basic meaning

• Structure: 基づく is read as もとづく and is a verb meaning to be based on evidence, facts, a legend, or another foundation.
• Basic usage: Mark the basis with に; use に基づいて to modify an action and に基づく to modify a following noun.

2. Common pitfalls and similar expressions

• The basis for an action
  • 調査結果に基づいて shows that the following revision is made on the basis of the survey results. Example: 調査結果に基づいて計画を修正した。
• Modifying a noun
  • 伝説に基づく作品 means a work based on an old legend. Example: この物語は古い伝説に基づく作品だ。