N5 · Structured courses

Nai-de Kudasai: Please Don't

Learn to politely ask someone not to do something. This lesson combines form, context, examples, common mistakes, and practice so you can use the pattern in real communication.

12 minNihongo Hub Editorial TeamPublished 2026-06-06Updated 2026-06-06

Learning objectives

  • Lesson goals: Learn to politely ask someone not to do something.
  • Form and connection: [Verb nai-form without い] ないでください
  • Nuance in real use: ないでください combines negation with politeness, letting you say "no" gracefully — the art of Japanese refusal.

Form and connection

[Verb nai-form without い] ないでください

Core Explanation

Learn to politely ask someone not to do something.

Cultural Note

ないでください combines negation with politeness, letting you say "no" gracefully — the art of Japanese refusal.

Practical examples

Please don't take photos here.
Please don't forget.
Please don't use your phone in the classroom.

Common pitfalls

Build the base form before adding the pattern

Complete the required conjugation first. Do not keep polite and plain endings at the same time.

Match politeness to the situation

The examples are reliable starting points; relationships and context can still change the most natural wording.

Practice and answers

1. Write the connection formula for this lesson.
Show answer[Verb nai-form without い] ないでください
2. Explain the meaning of the first example.
Show answerPlease don't take photos here.
3. Rewrite the final example using this lesson pattern.
Show answer教室きょうしつで携帯けいたいを使つかわないでください。 ([Verb nai-form without い] ないでください)

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