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How to Make Negative Requests in Japanese with ないでください

Sometimes you need to ask someone not to do something. In Japanese, the most common way to make a polite negative request is with ないでください.

Meaning

ないでください means:

“Please don’t…”

It’s polite and commonly used in everyday conversations, signs, and announcements.

Formation

To make a negative request:

Verb (ない form) + でください

Examples:

  • 食たべないでください → Please don’t eat.
  • 話はなさないでください → Please don’t talk.
  • 入はいらないでください → Please don’t enter.
  • 写真しゃしんを撮とらないでください → Please don’t take photos.
  • ドアを開あけないでください → Please don’t open the door.

Common Situations

You might hear or see ないでください in places like:

  • 電車でんしゃで電話でんわをしないでください。
    • Please don’t talk on the phone on the train.
  • ここに車くるまを止とめないでください。
    • Please don’t park here.
  • 芝生しばふに入はいらないでください。
    • Please don’t step on the grass.

ないでください vs な

Another way to tell someone not to do something is な.

Compare:

  • 入はいらないでください。
    • Please don’t enter.
  • 入はいるな。
    • Don’t enter!
  • 話はなさないでください。
    • Please don’t talk.
  • 話はなすな。
    • Don’t talk!

ないでください is polite and suitable for most situations.

な is much stronger and sounds like a direct command. You’ll often hear it in movies, anime, sports, or when someone is angry.

For everyday conversations, ないでください is usually the safer choice.

Casual Version

When speaking with friends or family, you can often drop ください.

  • 忘わすれないで。
    • Don’t forget.
  • 心配しんぱいしないで。
    • Don’t worry.
  • 触さわらないで。
    • Don’t touch it.

This sounds more casual but is still softer than using な.

Summary

To politely say “Please don’t…” in Japanese, use:

Verb (ない form) + でください

Examples:

  • 飲のまないでください
  • 行いかないでください
  • 撮とらないでください
  • 入はいらないでください

Remember:

  • ないでください = Please don’t…
  • な = Don’t… (strong command)

Learning ないでください will help you understand signs, announcements, and everyday Japanese conversations.

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