GrammarN32 min read2026-02-17

動詞辞書形 わけにはいかない

Express impossibility or inability due to social/personal obligations or circumstances.

Meaning

This pattern expresses that something cannot be done due to various reasons such as common sense, past experience, or social/psychological obligation. The speaker recognizes they should or want to do something, but there are compelling reasons making it impossible. It conveys a sense of reluctant impossibility or obligation.

Formation

Part of speechFormation

Examples

  1. 今日学校の期末テストがあるから、遅刻するわけにはいかない。
    Since there's a final exam at school today, I cannot possibly be late.

  2. ここまで頑張ってきたから、今諦めるわけにはいかない。
    After working this hard to get here, I cannot possibly give up now.

  3. 彼女と海外旅行に行くと約束したから、彼女をがっかりさせるわけにはいかない。
    I promised my girlfriend we'd go on an overseas trip together, so I cannot let her down.

Summary

  • Used when the speaker feels obligated or unable to do something despite wanting to
  • Expresses impossible or unthinkable actions due to social norms, promises, or circumstances
  • Conveys reluctant necessity—the speaker acknowledges the situation makes the action impossible

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