～てしまう do something completely
How to make” do something completely, show regret.” in Japanese.
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- ・ Meaning : do something completely. to regret
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- ・ JLPT Level: N3
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- ・ Category: grammar
You can use “～てしまう ” when you want to say “do something completely, to regret”.
1: do something completely, finish doing something, have finished doing completely.
2: sense of regret , to my regret.
The patterns is below:
てform＋しまう
※contracted form：
～てしまう → ～ちゃう／～ちゃった
～でしまう → ～じゃう／～じゃった
Examples of sentence
宿題をやってしまいました。
I have finished doing homework.
ケン君が好きだったんですが結婚してしまいました。
I loved ken but regrettably he got married.
鍵をなくしちゃった。
I’ve lost my key.