Level 3 Lesson 29 / ㅅ irregular / ㅅ 불규칙

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안녕하세요, 여러분!  In this lesson, we are talking about the “ㅅ” irregular. If you feel like there are many irregular rules in Korean, don’t worry! This is the 4th irregular rule that we are introducing and there aren’t many more left. Have fun!



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You can download a free PDF for this lesson here, or if you want to study with our TalkToMeInKorean textbooks, you can get them here. And after you learn the basics, try writing your own Korean sentences and get corrections from native speakers through HaruKorean, our 1:1 correction service.


  • Esat Armağan Kaymaz

    저는 이거 문장을 지었어요.
    I built this sentence.

    • Seokjin Jin

      When it comes to 문장, 만들어 is used but not 짓다.

      저는 이 문장을 만들었어요.

  • Matt

    그 마녀는 나무하고 뼈로 집 지었어요. = The witch built a house of wood and bone.
    와우, 이거 낫는 것 빠라요. = Wow, this is healing fast.
    언제 웃었는데, 제 심장 녹았어요. = When she smiled, my heart melted.

    감사합니다 for the lesson!

    • Seokjin Jin

      이거 낫는 것 빠라요. > 이거 빨리 나아요.
      언제 웃었는데, 제 심장 녹았어요.
      > 그녀가 웃었을 때, 제 심장이 녹았어요.

    • Matt

      For “그녀가 웃었을 때…” I understand that 때 means “time/moment” and so I suspect that: 웃었을 때… = “the moment [subject] smiled…”.

      Is this a general form => [verb stem] + -을 때 that works for all verbs? Do the following make sense?

      떨어졌을 때 = the time I fell
      소고기를 먹었을 때 = the time I ate beef
      이해했을 때 = the moment I understood

      Can it be used in other tenses as well?
      그녀가 볼 때 = “The moment she sees me.”
      그녀를 볼 거을 때 = “The moment I will see her.”

      감사합니다 for all the corrections! 매우 도움이에요! (Very helpful).