〜てはいられません

Cannot ~; Must not be able to ~

1. Overview

「〜てはいられません」 is a grammatical structure used to express obligation or an inability to relax one's efforts. It indicates that the speaker cannot adopt a relaxed attitude under certain circumstances, often implying a sense of urgency or responsibility.

2. Structure

• Verb (て form) + はいられません

3. Usage Explanation

• Sense of Obligation: This structure is used to express the necessity of taking action or an inability to let up in certain situations.

• Emphasis on Urgency: It emphasizes the speaker's urgency or seriousness about something, indicating that one must continue to make efforts in a given context.

4. Example Sentences

1. このプロジェクトは期限が迫っているので、手を休めてはいられません。
   (This project has a deadline approaching, so I cannot afford to rest.)

2. 大切な試験があるから、遊んでいてはいられません。
   (Because there is an important exam, I cannot waste time playing.)

3. 彼のサポートが必要なので、ここで立ち止まってはいられません。
   (I need his support, so I cannot stop here.)

4. 会社の利益が落ちているので、努力を怠ってはいられません。
   (As the company's profits are declining, I cannot be negligent.)

5. 緊急事態なので、休んでいてはいられません。
   (Since it's an emergency, I cannot afford to take a break.)

5. Key Points to Note

• Tone: This structure is often used in formal or urgent situations, conveying a sense of responsibility and urgency.

• Usage Context: Commonly used in work, study, or other situations where responsibility is required.

6. Similar Grammar

• 〜てはならない: Indicates prohibition or something that must not be done.
  • Example: そんなことをしてはならない。
    (You must not do such a thing.)

7. Alternative Grammar

• 〜ざるを得ない: Indicates that there is no choice but to do something.
  • Example: 行かざるを得ない。
    (I have no choice but to go.)

8. Summary

「〜てはいられません」 is used to express a sense of obligation to remain alert or not to relax in certain situations. It emphasizes the speaker's urgency and seriousness regarding specific tasks or responsibilities.