筈(はず)だ

Bound to (be), Expected to (be), Should be (able)

There is also another, even less used kanji for はず：弭。

使い方・接続

Verb + はず + だ
［い］Adjective + はず + だ
［な］Adjective + な + はず + だ
Noun + の + はず + だ

詳細

使用域
Standard
使用域
一般

「はずだ」の情報

はず, coming from the kanji 筈(はず), is a word in Japanese that is very similar to 'bound' in English. This means that it expresses something that the speaker is 'quite sure is true', but cannot confirm. The most common translations of はず are 'bound to be (A)', and 'should be (A)'.
As はず is a noun, it may be used in any place that a noun would usually be used. It will often be followed by だ, or です.

今日(きょう)は雨(あめ)が降(ふ)るはずだ。
It is supposed to rain today. (But I am not 100% sure if it will)
新幹線(しんかんせん)で行(い)った方(ほう)が速(はや)いはずだ。
It is bound to be faster if we go by shinkansen. (But I am not 100% sure if it will)
彼(かれ)は魚(さかな)が嫌(きら)いだから寿司(すし)は嫌(きら)いなはずだ。
He does not like fish, so he is sure to dislike sushi. (But I am not 100% sure if he will)
頼(たの)んだのはコーヒーのはずだったけどお茶(ちゃ)が来(き)た。
I was sure that I ordered coffee, but tea came. (But I am not 100% sure if I did)

Caution

Despite はず sometimes being translated as 'should', this is only when you think that something 'should be true', and cannot be used when making suggestions/giving advice. Due to this, 'bound' is the more accurate translation of 筈(はず), in almost all situations.

Fun Fact

The だ (or です) in はずだ may be omitted. This usually makes はず sound a little less certain, like 'bound to be (A)... probably'. In the same way, speakers may sometimes add はず to the end of their sentences in a similar way to 多分(たぶん), in order to show that they are not 100% certain about whether what they just said is accurate or not.

ハリーも今日(きょう)のパーティーに行(い)く…はず。
Harry will go to the party today… Probably.
出(で)かける前(まえ)に家(いえ)の中(なか)の電気(でんき)は全部(ぜんぶ)消(け)した… はず。
I turned off all the lights in my house before I left… I'm pretty sure.

同義語

反意語

例文

彼(かれ)は借(か)りたペンを返(かえ)すはずだ。
He is bound to return the pen he borrowed.
妻(つま)は夜(よる)七時(しちじ)までに、帰(かえ)ってくるはずだ。
My wife is expected to return home by seven o'clock.
夏(なつ)だから、暑(あつ)いはずだ。
Because it is summer, it is supposed to be hot.
ここから富士山(ふじさん)が見(み)えるはずだ。
One should be able to see Mt. Fuji from here.
この港(みなと)には船(ふね)があるはずだ。
There are bound to be boats in this harbor.
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オンライン
- Using 「はず」 to describe an expectation
  Tae Kim
- How to use はず
  MaggieSensei
- はず Should / Supposed To in Japanese
  Japanese Ammo with Misa

オフライン
- Genki II 1st Edition
  Page 142
- Genki II 2nd Edition
  Page 172
- みんなの日本語 II
  Page 132 [CH 46]
- [DBJG] A Dictionary of Basic Japanese Grammar
  Page 133
- Tae Kim's Japanese Grammar Guide
  Page 305
- [AIAIJ] An Integrated Approach to Intermediate Japanese
  Page 153
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「はずだ」に関する文法ディスカッション

最近の返信 (合計9件)

mrnoone

Pep95:

筈

Hey

According to the great suggestion, I have added the information to the grammar point!

Cheers,

PS
Sorry for late answer (basically I have been sick for last few weeks )
Ambo100
Perhaps the grammar point should just be はず? In the examples used in Genki it uses はずです and the DBJG item is just はず giving examples that use both だ and です.

The structure section could be rephrased as はず + ( だ/です)
Howl_UK
There is a Japanese Ammo video for this.

https://youtu.be/a2XeZexCuco