JAPANESE STUDY SYSTEMKOTOWA 词和
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SILVER ERA · ことばを、少しずつ。
JLPT BANDN5 BEGINNER → N1 ADVANCED

〜ついでに

N3
tsuide ni

while (at it); on the occasion of; since one is doing it anyway

Formation

Verb-dict / Verb-ta / Noun + の + ついでに

Chinese meanings

顺便;借……之便

Chinese formation

动词辞书形/た形/名词+の+ついでに

Chinese usage

利用原本要做某事的机会,顺便做另一件事。

Chinese notes

后项是顺带做的事情。

Examples

  • 郵ゆう便びん局きょくへ行いくついでに、この手て紙がみも出だしてきてくれる?
    Since you're going to the post office, could you mail this letter too?
    你去邮局的时候,能顺便帮我把这封信寄了吗?
  • 京きょう都とへ出しゅっ張ちょうしたついでに、昔むかしの友とも達だちに会あってきた。
    While I was on a business trip to Kyoto, I took the chance to see an old friend.
    去京都出差时,我顺便去见了老朋友。
  • 買かい物もののついでに、図と書しょ館かんに本ほんを返かえした。
    I returned some books to the library while I was out shopping.
    买东西时顺便去图书馆还了书。

Notes

The main action happens anyway; the second is added because it's convenient. Compare N1 〜がてら.

#simultaneity#addition

Related N3 grammar

Suggest an improvement

Use this entry in code
import { getGrammarById } from 'kotowa';
getGrammarById('tsuide-ni');
{
  "id": "tsuide-ni",
  "pattern": "〜ついでに",
  "romaji": "tsuide ni",
  "level": "N3",
  "meaning": "while (at it); on the occasion of; since one is doing it anyway",
  "formation": "Verb-dict / Verb-ta / Noun + の + ついでに",
  "examples": [
    {
      "ja": "郵便局へ行くついでに、この手紙も出してきてくれる?",
      "furigana": "{郵便|ゆうびん}{局|きょく}へ{行|い}くついでに、この{手紙|てがみ}も{出|だ}してきてくれる?",
      "en": "Since you're going to the post office, could you mail this letter too?"
    },
    {
      "ja": "京都へ出張したついでに、昔の友達に会ってきた。",
      "furigana": "{京都|きょうと}へ{出張|しゅっちょう}したついでに、{昔|むかし}の{友達|ともだち}に{会|あ}ってきた。",
      "en": "While I was on a business trip to Kyoto, I took the chance to see an old friend."
    },
    {
      "ja": "買い物のついでに、図書館に本を返した。",
      "furigana": "{買|か}い{物|もの}のついでに、{図書館|としょかん}に{本|ほん}を{返|かえ}した。",
      "en": "I returned some books to the library while I was out shopping."
    }
  ],
  "tags": [
    "simultaneity",
    "addition"
  ],
  "notes": "The main action happens anyway; the second is added because it's convenient. Compare N1 〜がてら.",
  "zh": {
    "source_hash": "962c60c804d1a1a8e1831e8e79953189c9b8d41acfca1fa65e55133458ef6f18",
    "meanings": [
      "顺便",
      "借……之便"
    ],
    "formation": "动词辞书形/た形/名词+の+ついでに",
    "explanation": "利用原本要做某事的机会,顺便做另一件事。",
    "notes": "后项是顺带做的事情。",
    "examples": [
      {
        "ja": "郵便局へ行くついでに、この手紙も出してきてくれる?",
        "zh": "你去邮局的时候,能顺便帮我把这封信寄了吗?"
      },
      {
        "ja": "京都へ出張したついでに、昔の友達に会ってきた。",
        "zh": "去京都出差时,我顺便去见了老朋友。"
      },
      {
        "ja": "買い物のついでに、図書館に本を返した。",
        "zh": "买东西时顺便去图书馆还了书。"
      }
    ],
    "references": [
      "sources/grammar/n3.json#tsuide-ni",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "status": "reviewed",
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "0103fbb89aaef741efbc1e8aacb8601487f3785cf6db547d56b69746a27f0613"
  }
}