〜せいか

import { getGrammarById } from 'kotowa';
getGrammarById('sei-ka');

{
  "id": "sei-ka",
  "pattern": "〜せいか",
  "romaji": "sei ka",
  "level": "N2",
  "meaning": "perhaps because; maybe due to",
  "formation": "Verb-plain / i-Adj / na-Adj + な / Noun + の + せいか",
  "examples": [
    {
      "ja": "年のせいか、最近疲れが取れにくくなった。",
      "furigana": "{年|とし}のせいか、{最近|さいきん}{疲|つか}れが{取|と}れにくくなった。",
      "en": "Maybe it's my age, but lately it takes longer to recover from fatigue."
    },
    {
      "ja": "昨夜遅くまで起きていたせいか、今日は頭がぼんやりしている。",
      "furigana": "{昨夜|さくや}{遅|おそ}くまで{起|お}きていたせいか、{今日|きょう}は{頭|あたま}がぼんやりしている。",
      "en": "Perhaps because I stayed up late last night, my head feels foggy today."
    },
    {
      "ja": "気のせいか、彼女は少し元気がないように見えた。",
      "furigana": "{気|き}のせいか、{彼女|かのじょ}は{少|すこ}し{元気|げんき}がないように{見|み}えた。",
      "en": "Maybe it was just my imagination, but she seemed a little down."
    }
  ],
  "tags": [
    "reason",
    "conjecture"
  ],
  "notes": "The speaker isn't sure of the cause. Mostly for bad or neutral results; for good results おかげか is also used.",
  "zh": {
    "status": "reviewed",
    "source_hash": "73ce361817b3791986979a41b0976f9bb92030b815d1ce7d02b1170e3efd930f",
    "meanings": [
      "也许是因为"
    ],
    "formation": "动词・い形容词普通形＋せいか；な形容词词干＋な＋せいか；名词＋のせいか",
    "explanation": "表示不确定的原因，通常用于不理想或中性的结果。",
    "notes": "好的结果也可用おかげか。",
    "examples": [
      {
        "ja": "年のせいか、最近疲れが取れにくくなった。",
        "zh": "也许是年纪的缘故，最近疲劳不容易消除。"
      },
      {
        "ja": "昨夜遅くまで起きていたせいか、今日は頭がぼんやりしている。",
        "zh": "也许是昨晚熬夜的缘故，今天头脑昏沉。"
      },
      {
        "ja": "気のせいか、彼女は少し元気がないように見えた。",
        "zh": "也许是我的错觉，她看起来有点没精神。"
      }
    ],
    "references": [
      "sources/grammar/n2.json#sei-ka",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "9bfbd707744bc50256d700b5f6c640009e710d5c05f372cacbc20f1b3068a9a6"
  }
}