脱出（だっしゅつ）した犯人（はんにん）が見（み）つかるはずだ。

お兄（にい）ちゃんはこのプレゼントが好（す）きなはずだ。

彼（かれ）は借（か）りたペンを返（かえ）すはずだ。

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。

夏（なつ）だから、暑（あつ）いはずだ。

ここから富士山（ふじさん）が見（み）えるはずだ。

この港（みなと）には船（ふね）があるはずだ。

降（お）りるのは次（つぎ）の駅（えき）のはずです。

今日（きょう）お母（かあ）さんが家（いえ）に居（い）るから、迎（むか）えに来（き）てくれるはずだ。

こんな薄（うす）い氷（こおり）の上（うえ）では歩（ある）けないはずだ。

約束（やくそく）のはずだったのに、破（やぶ）ったの？

ちゃんと用意（ようい）したはずだったのに、歯（は）ブラシ持（も）って来（く）るのを忘（わす）れた。

Using 「はず」 to describe an expectation

<div class='writeup-body'>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.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>今日（きょう）は雨（あめ）が降（ふ）るはずだ。</div><div class='writeup-example--english'>It is supposed to rain today. (But I am not 100% sure if it will)</div></li><li class='writeup-example'><div class='writeup-example--japanese'>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。</div><div class='writeup-example--english'>It is bound to be faster if we go by shinkansen. (But I am not 100% sure if it will)</div></li><li class='writeup-example'><div class='writeup-example--japanese'>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。</div><div class='writeup-example--english'>He does not like fish, so he is sure to dislike sushi. (But I am not 100% sure if he will)</div></li><li class='writeup-example'><div class='writeup-example--japanese'>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。</div><div class='writeup-example--english'>I was sure that I ordered coffee, but tea came. (But I am not 100% sure if I did)</div></li></ul><div class='writeup-caution'><div class='caution-header'>Caution</div>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.</div><div class='writeup-funfact'><div class='funfact-header'>Fun Fact</div>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.<ul class='writeup-examples--holder'><li class='writeup-example'><div class='writeup-example--japanese'>ハリーも今日（きょう）のパーティーに行（い）く…はず。</div><div class='writeup-example--english'>Harry will go to the party today… Probably.</div></li><li class='writeup-example'><div class='writeup-example--japanese'>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。</div><div class='writeup-example--english'>I turned off all the lights in my house before I left… I'm pretty sure.</div></li></ul></div></div>

Grammar Info

筈(はず)だ

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