Japanese · Day 7 · Intermediate Grammar Patterns
〜てしまう〜てしまう (～ちゃう・～じゃう)
〜te shimauRōmaji
to finish doing / to end up (unintentionally or regrettably)
auxiliary verb pattern
Auxiliary verb pattern indicating completion of an action or expressing regret/accidental outcome. Often implies that something was done completely, inadvertently, or with a sense of finality. In casual speech, contracted to 〜ちゃう (for てしまう) or 〜じゃう (for でしまう).
In a sentence
大事な書類をうっかり捨ててしまって、大後悔している。
daiji na shorui o ukkari sutete shimatte, daikoukai shite iru.
I accidentally threw away important documents and I deeply regret it.