〜はず

Should...; Must...

1. Meaning

“〜はず” is used to express that something is expected or assumed to be the case based on logic, reasoning, or prior knowledge. It indicates a strong belief that a particular situation should be true.

2. Overview

This structure conveys the speaker's expectation or assumption about a situation or outcome. It is often used in both spoken and written Japanese to express certainty or obligation.

3. Structure

• Grammar Structure:

  • Verb (plain form) + はず
  • Adjective (plain form) + はず
  • Noun + の + はず

• Explanation: This structure indicates that the speaker believes something should happen or be true based on certain evidence or reasoning.

4. Usage Explanation

• Connection:

  • “〜はず” can be combined with verbs, adjectives, and nouns.

• Translation: Translated as “should...; must...”.

5. Example Sentences

1. 彼はもうすぐ来るはずです。
   He should be coming soon.

2. この本は面白いはずだ。
   This book must be interesting.

3. 明日は雨が降るはずです。
   It should rain tomorrow.

4. 彼女はパーティーに来るはずだった。
   She was supposed to come to the party.

5. 彼のことを知っているはずだ。
   You must know about him.

6. Similar Grammar

• 〜はずがない: Indicates that something is impossible or unlikely to happen.
  • Example: 彼がそんなことをするはずがない。
    He can't possibly do such a thing.

7. Notes

• Context: “〜はず” is typically used to express expectations or assumptions, often based on logical reasoning.

• Tone: The tone can range from neutral to slightly assertive, depending on the context in which it is used.

8. Summary

The structure “〜はず” is used to indicate that something is expected or assumed to be the case, reflecting the speaker's belief based on evidence or reasoning. It is commonly used in various contexts in both spoken and written Japanese.