Advice, obligation and request

～こと(指示)

be sure to ~; (written rule or instruction)

AI-written, reviewed by AI (ChatGPT)

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How to form it

  • Verb (dictionary form) + こと
  • Verb (ない-form, e.g. 遅れない) + こと

Register: Written; notices, rules and instructions

Explanation

Gives a rule or instruction in a short written form.

It is used in lists of rules, notices and homework instructions. It sounds impersonal and firm and is not usually spoken to a person in conversation.

Examples

  1. 教室では、携帯電話の電源を切ること。

    きょうしつでは、けいたいでんわのでんげんをきること。

    In the classroom, switch off your mobile phone.

  2. 提出する前に、名前を書くこと。

    ていしゅつするまえに、なまえをかくこと。

    Write your name before handing it in.

  3. 廊下を走らないこと。

    ろうかをはしらないこと。

    Do not run in the corridors.

  4. ごみは、必ず持ち帰ること。

    ごみは、かならずもちかえること。

    Be sure to take your rubbish home.

Compare with

  • ～なさい: なさい is spoken to someone; こと is a written rule.

Common mistakes

  • Using it in polite conversation as a request.