〜はずだ

import { getGrammarById } from 'kotowa';
getGrammarById('hazu-da');

{
  "id": "hazu-da",
  "pattern": "〜はずだ",
  "romaji": "hazu da",
  "level": "N4",
  "meaning": "should be; is expected to (based on reasoning)",
  "formation": "Verb-plain / i-Adj + はずだ / na-Adj + な + はずだ / Noun + の + はずだ",
  "examples": [
    {
      "ja": "荷物は明日届くはずです。",
      "furigana": "{荷物|にもつ}は{明日|あした}{届|とど}くはずです。",
      "en": "The package should arrive tomorrow."
    },
    {
      "ja": "彼は十年もアメリカに住んでいたから、英語が上手なはずだ。",
      "furigana": "{彼|かれ}は{十|じゅう}{年|ねん}もアメリカに{住|す}んでいたから、{英語|えいご}が{上手|じょうず}なはずだ。",
      "en": "He lived in America for ten years, so his English should be good."
    },
    {
      "ja": "おかしいな。かぎはここに置いたはずなのに。",
      "furigana": "おかしいな。かぎはここに{置|お}いたはずなのに。",
      "en": "That's strange. I'm sure I put the keys here."
    }
  ],
  "tags": [
    "conjecture"
  ],
  "notes": "A confident expectation based on facts or logic, not a guess. It does not mean 'should' as a duty.",
  "zh": {
    "status": "reviewed",
    "source_hash": "07ba66046317ad12720e15466f9ae37070a2a233bdaefabeac9a1be6a4354f9a",
    "meanings": [
      "应该",
      "按理说"
    ],
    "formation": "动词简体／い形容词＋はずだ；な形容词＋なはずだ；名词＋のはずだ",
    "explanation": "根据事实或推理作出有依据的预期。",
    "notes": "表示推断，不表示义务。",
    "examples": [
      {
        "ja": "荷物は明日届くはずです。",
        "zh": "包裹应该明天到。"
      },
      {
        "ja": "彼は十年もアメリカに住んでいたから、英語が上手なはずだ。",
        "zh": "他在美国住了十年，英语应该很好。"
      },
      {
        "ja": "おかしいな。かぎはここに置いたはずなのに。",
        "zh": "奇怪，我明明记得把钥匙放在这里了。"
      }
    ],
    "references": [
      "sources/grammar/n4.json#hazu-da",
      "Original Chinese authored and reviewed by Codex; no independent human review"
    ],
    "reviewer": "Codex",
    "review_method": "ai",
    "reviewed_at": "2026-10-28",
    "review_hash": "eb2855d4cef55e651a17196686061bb5d6d5b83aa350a1a4899d00469c098417"
  }
}