〜に（frequency）

ni (frequency)

per; in (how many times within a period)

Formation

Noun + に + Noun

Chinese meanings

每……；在……期间内

Chinese formation

时间段＋に＋次数或数量

Chinese usage

把一个时间段作为单位，说明动作重复的次数。

Chinese notes

一週間に二回表示每周两次，不表示在某个具体时刻。

Examples

Furigana

一いっ週しゅう間かんに二に回かい、プールで泳およぎます。
I swim in the pool twice a week.
我每周在游泳池游两次泳。
母ははは一いち日にちに二に回かい、犬いぬの散さん歩ぽをします。
My mother walks the dog twice a day.
妈妈每天遛狗两次。
一いち年ねんに一いち度ど、家か族ぞくで旅りょ行こうします。
Once a year, my family goes on a trip.
我们全家每年旅行一次。

Notes

The period comes first, then に, then the number of times: 月に一回 (once a month).

#particle#quantity

Related N5 grammar

〜は〜が（subject）〜を〜に（time）〜に（destination）〜に（place of existence）〜に（indirect object）〜へ

Practice in a lesson

Word classes

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Use this entry in code

import { getGrammarById } from 'kotowa';
getGrammarById('ni-frequency');

{
  "id": "ni-frequency",
  "pattern": "〜に（frequency）",
  "romaji": "ni (frequency)",
  "level": "N5",
  "meaning": "per; in (how many times within a period)",
  "formation": "Noun + に + Noun",
  "examples": [
    {
      "ja": "一週間に二回、プールで泳ぎます。",
      "furigana": "{一週間|いっしゅうかん}に{二|に}{回|かい}、プールで{泳|およ}ぎます。",
      "en": "I swim in the pool twice a week."
    },
    {
      "ja": "母は一日に二回、犬の散歩をします。",
      "furigana": "{母|はは}は{一|いち}{日|にち}に{二|に}{回|かい}、{犬|いぬ}の{散歩|さんぽ}をします。",
      "en": "My mother walks the dog twice a day."
    },
    {
      "ja": "一年に一度、家族で旅行します。",
      "furigana": "{一|いち}{年|ねん}に{一|いち}{度|ど}、{家族|かぞく}で{旅行|りょこう}します。",
      "en": "Once a year, my family goes on a trip."
    }
  ],
  "tags": [
    "particle",
    "quantity"
  ],
  "notes": "The period comes first, then に, then the number of times: 月に一回 (once a month).",
  "zh": {
    "status": "reviewed",
    "source_hash": "6805e7472ffc06a0a5b3745e4e4a6be8e3f33717ffef241416ebfb90cba5d212",
    "meanings": [
      "每……",
      "在……期间内"
    ],
    "formation": "时间段＋に＋次数或数量",
    "explanation": "把一个时间段作为单位，说明动作重复的次数。",
    "notes": "一週間に二回表示每周两次，不表示在某个具体时刻。",
    "examples": [
      {
        "ja": "一週間に二回、プールで泳ぎます。",
        "zh": "我每周在游泳池游两次泳。"
      },
      {
        "ja": "母は一日に二回、犬の散歩をします。",
        "zh": "妈妈每天遛狗两次。"
      },
      {
        "ja": "一年に一度、家族で旅行します。",
        "zh": "我们全家每年旅行一次。"
      }
    ],
    "references": [
      "sources/grammar/n5.json#ni-frequency",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "ec4ae3b92fa4183f39f3c62bb8bfee2466d054648908eab3382316437a209a3f"
  }
}