jlptpass.com/n4/grammar/te-shimau/
Explanation of the JLPT N4 grammar point てしまう (te shimau), covering its meanings of completion and unintended action, with formation rules, examples, common mistakes, and casual contractions.
GrammarJLPT and other testsJLPT N4Sentence patternsTe-formJLPTTransitive and intransitiveListening practice