How to use 을/ㄹ 줄 모르다 in Korean

Pattern: -(으)ㄹ 줄 모르다

-(으)ㄹ 줄 모르다 (-(eu)ㄹjulmo-reu-da, (eu)ㄹjulmoreuda)

-(으)ㄹ 줄 모르다 means not knowing how to do something or lacking ability.

Korean phrase -(으)ㄹ 줄 모르다 usage explanation

Usage guide

When and how native speakers actually use it.

-(으)ㄹ 줄 모르다(-(eu)ㄹjulmo-reu-da, (eu)ㄹjulmoreuda)

Indicates not knowing how to do an action or lacking the ability to do it.

When to use

expressing ability, lack of skill, lack of experience

The nuance

Attach -(으)ㄹ 줄 모르다 to the verb stem to express not knowing how to do that action. Use -을 줄 모르다 if the stem ends with a consonant, -ㄹ 줄 모르다 if it ends with a vowel.

Real-world examples

  • 저는 수영할 줄 몰라요.

    jeo-neun su-yeong-hal jul mol-ra-yo., jeo neun su yeong hal jul mol ra yo.

    The verb stem '수영하' + ㄹ 줄 모르다 forms 수영할 줄 모르다 correctly.

  • 그는 운전할 줄 몰라요.

    geu-neun un-jeon-hal jul mol-ra-yo., geu neun un jeon hal jul mol ra yo.

    Attach ㄹ 줄 모르다 to the verb stem '운전하' to form 운전할 줄 모르다.

  • 나는 요리할 줄 몰라요.

    na-neun yo-ri-hal jul mol-ra-yo., na neun yo ri hal jul mol ra yo.

    Attach ㄹ 줄 모르다 to verb stem '요리하' to form 요리할 줄 모르다.

  • 그녀는 노래할 줄 몰라요.

    geu-nyeo-neun no-rae-hal jul mol-ra-yo., geu nyeo neun no rae hal jul mol ra yo.

    Attach ㄹ 줄 모르다 to verb stem '노래하' to form 노래할 줄 모르다.

  • 나는 춤을 출 줄 몰라요.

    na-neun chum-eul chul jul mol-ra-yo., na neun chum eul chul jul mol ra yo.

    The verb stem '춤추' + ㄹ 줄 모르다 forms 춤을 출 줄 모르다 correctly.

  • 나는 달릴 줄 몰라요.

    na-neun dal-ril jul mol-ra-yo., na neun dal ril jul mol ra yo.

    Attach ㄹ 줄 모르다 to verb stem '달리' to form 달릴 줄 모르다.

  • 나는 책을 읽을 줄 몰라요.

    na-neun chaek-eul ik-eul jul mol-ra-yo., na neun chaek eul ik eul jul mol ra yo.

    Attach 을 줄 모르다 to verb stem '읽' to form 읽을 줄 모르다.

  • 나는 운전할 줄 알아요.

    na-neun un-jeon-hal jul al-a-yo., na neun un jeon hal jul al a yo.

    '할 줄 알아요' is the positive form indicating ability, opposite of '-(으)ㄹ 줄 모르다'.

Quick quiz

  1. Which sentence is correct?

    다음 중 올바른 문장은?(da-eumjungol-ba-reunmun-jang-eun?, daeumjungolbareunmunjangeun?)
  2. Which is correct for '춤추다'?

    '춤추다'에 맞는 표현은?('chum-chu-da'emaj-neunpyo-hyeon-eun?, 'chumchuda'emajneunpyohyeoneun?)
  3. Which sentence is incorrect?

    다음 중 틀린 문장은?(da-eumjungteul-rinmun-jang-eun?, daeumjungteulrinmunjangeun?)

More usage guides

View all usage guides →