Explanation
Indicates a (often unfortunate) result or conclusion of an action.
Formation
Verb-dictionary form + 始末だ
Detailed explanation
The ～る始末だ grammar point expresses the outcome or conclusion of an action, typically a negative or unfortunate result. It can be translated as 'end up...', 'the result is...', or 'the conclusion is...'.
Examples
Wasurete shimatte, pasupooto o ie ni oite-kuru shimatsu datta.
I ended up leaving my passport at home because I forgot.
Maiban osoku made hataraite, taoreru shimatsu da.
I work until late every night and end up collapsing.
Benkyou shinakatta node, shiken ni ochiru shimatsu da.
I didn't study, so I ended up failing the exam.
Densha ga okureta tame, kaigi ni okureru shimatsu da.
Because the train was delayed, I ended up being late for the meeting.
Practice
Grammar content sourced from hanabira.org.