はずだった

was supposed to

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phrase Uncommon #19,286

was supposed to Used for something that was expected or planned to happen in the past, often implying that it did not happen. It can be followed by のに to express disappointment or contrast.

JA: 昨日来るはずだった。

EN: You were supposed to come yesterday.

彼はその前日に私に借金を返すはずだった

He was supposed to pay me back the day before.

— Article 15 (2019)

今朝の手術で復帰するはずだったが休暇を延長してもいい

I was supposed to return after this morning’s surgery, but I can extend my leave if necessary.

— 嵐の中で (2018)

私たちと一緒にトムも来るはずだったんだけど、トム来なかったの。

Tom was supposed to come with us, but he didn't show up.

私たちは昨日の午後トムを手伝うはずだった。

We were supposed to help Tom yesterday afternoon.

来るはずだったのに。

You were supposed to come.

成功するはずだった。

It was supposed to succeed.

そんなことが起こるはずだったのか？

Was that really supposed to happen?

— ウィキッド永遠の約束 (2025)

彼はここにいるはずだった

He was supposed to be here.

— レザボア・ドッグス (1992)

勉強するはずだったんだけどな、テレビ見ちゃった。

I was supposed to study, but I ended up watching TV.