How to use 을/ㄹ 줄 알다 in Korean

Pattern: -(으)ㄹ 줄 알다

-(으)ㄹ 줄 알다 (-(eu)ㄹjulal-da, (eu)ㄹjulalda)

-(으)ㄹ 줄 알다 expresses ability, habit, or expectation in Korean.

Korean grammar -(으)ㄹ 줄 알다 explanation

Usage guide

When and how native speakers actually use it.

-(으)ㄹ 줄 알다(-(eu)ㄹjulal-da, (eu)ㄹjulalda)

Expresses ability, habit, or expectation

When to use

Expressing ability, Describing habits, Conveying expectations

The nuance

Attach -(으)ㄹ 줄 알다 to verb stems to express ability, habit, or expectation. Past tense is -(으)ㄹ 줄 알았다, negative is -(으)ㄹ 줄 몰랐다. '~할 줄 알다' means 'know how to do'; '~할 줄 모르다' means 'not know how to do' or 'didn't expect'.

Real-world examples

  • 저는 한국어를 할 줄 알아요.

    jeo-neun han-guk-eo-reul hal jul al-a-yo., jeo neun han guk eo reul hal jul al a yo.

    Correct sentence expressing ability.

  • 그는 매일 운동할 줄 알아요.

    geu-neun mae-il un-dong-hal jul al-a-yo., geu neun mae il un dong hal jul al a yo.

    Proper use to describe a habit.

  • 내일 비가 올 줄 몰랐어요.

    nae-il bi-ga ol jul mol-rass-eo-yo., nae il bi ga ol jul mol rass eo yo.

    Natural sentence negating an expectation.

  • 나는 피아노를 칠 줄 모른다.

    na-neun pi-a-no-reul chil jul mo-reun-da., na neun pi a no reul chil jul mo reun da.

    Correct negative form expressing lack of ability.

  • 그녀는 노래할 줄 알았어요.

    geu-nyeo-neun no-rae-hal jul al-ass-eo-yo., geu nyeo neun no rae hal jul al ass eo yo.

    Natural past tense expressing ability.

  • 저는 운전할 줄 아나요?

    jeo-neun un-jeon-hal jul a-na-yo?, jeo neun un jeon hal jul a na yo?

    Inappropriate to ask oneself this way.

  • 우리는 그가 올 줄 알았다.

    u-ri-neun geu-ga ol jul al-ass-da., u ri neun geu ga ol jul al ass da.

    Correct sentence expressing expectation.

  • 그는 요리할 줄 몰라요?

    geu-neun yo-ri-hal jul mol-ra-yo?, geu neun yo ri hal jul mol ra yo?

    Natural negative question form.

Quick quiz

  1. What does '할 줄 알다' mean?

    ‘할 줄 알다’의 의미는?(‘haljulal-da’uiui-mi-neun?, ‘haljulalda’uiuimineun?)
  2. What does '운전할 줄 몰라요' mean?

    ‘운전할 줄 몰라요’는 무슨 뜻인가요?(‘un-jeon-haljulmol-ra-yo’neunmu-seuntteus-in-ga-yo?, ‘unjeonhaljulmolrayo’neunmuseuntteusingayo?)
  3. When do you use '그가 올 줄 알았다'?

    ‘그가 올 줄 알았다’는 어떤 상황에서 쓰나요?(‘geu-gaoljulal-ass-da’neuneo-tteonsang-hwang-e-seosseu-na-yo?, ‘geugaoljulalassda’neuneotteonsanghwangeseosseunayo?)

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