しまう

shimau
verbIntermediate to end up doing something by mistake
informal

To end up doing something unintentionally or by mistake, often with a sense of regret or frustration.

電車に乗り遅れてしまいました。

I ended up missing the train.

お金を使いすぎてしまいました。

I ended up spending too much money.

💡

This verb is often used to express regret or frustration about an unintended action.

neutral

To complete or finish something, often with a sense of finality.

宿題を全部やってしまいました。

I finished all my homework.

ご飯を食べてしまいました。

I finished eating.

💡

In this context, it can be used to indicate that something has been completed.

Related Phrases

しまい込むphrase
to put away or store something
しまいにするphrase
to finish or complete something

💡Pro Tip

Common Usage

This verb is often used to express regret or frustration about an unintended action.

Gold Rule

Regretful Actions

Use 'しまう' to describe actions that were unintended or caused regret.

📖Word Origin

Derived from the verb '終える' (oeru), meaning 'to finish,' with the auxiliary verb 'しまう' adding a sense of completion or unintended consequence.

📝Usage Notes

This verb is often used to express regret or frustration about an unintended action. It can also be used to indicate that something has been completed.

Word Breakdown

しま
to finish or complete
root
+
auxiliary verb indicating completion or unintended consequence
suffix
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