すべきだったのに

should have … but didn’t

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phrase Rare #24,700
should have … but didn’t Often expresses regret or reproach that someone failed to do something they should have done.
JA: もっと早く連絡すべきだったのに。
EN: You should have contacted me sooner.

もっと丁寧な話し方をすべきだったのに。

I should have spoken more politely.

君は彼女の忠告に従って行動すべきだったのにしなかった。

You should have followed her advice, but you didn't.

君は自己紹介すべきだったのに。

You should have introduced yourself.

君は会合に出席すべきだったのに。

You should have attended the meeting.

君はその会合に出席すべきだったのに。

You should have attended that meeting.

あなたは金銭問題にはもっと注意すべきだったのに。

You should have been more careful about money matters.

もっと一生懸命勉強すべきだったのに。

I should have studied harder.

私はそのことを両親に相談すべきだったのに。

I should have talked to my parents about it.