KOREAN LEVEL UP › Korean phrases › Greetings & basics › 몰라요
How to Say “I don’t know” in Korean: 몰라요 (mollayo)
몰라요
mollayo
Meaning
I don’t know.
Usage note
The polite form of 모르다, a 르-irregular verb: 모르 + 아요 becomes 몰라요 (doubled ㄹ). Its opposite is 알아요 (I know).
Romanization follows the Revised Romanization system and is a guide to pronunciation.
Practical guide
When to use it
The polite “I don’t know” when you lack the information (from 모르다). With close friends it is 몰라. 잘 몰라요 (“I don’t really know”) sounds softer.
Watch out
Said flatly, it can sound curt, like “no idea (and I don’t care)”. To elders, 잘 모르겠어요 (“I’m not sure”) is more polite.
In a conversation
- 이 길이 맞아요? i giri majayo?
Is this the right way? - 몰라요 mollayo
I don’t know.
How to pronounce it
It is pronounced just as it is written.
| Syllable | Letters (consonant + vowel + final) | Romanization |
|---|---|---|
| 몰 | ㅁ+ㅗ+ㄹ | mol |
| 라 | ㄹ+ㅏ | la |
| 요 | ㅇ+ㅛ | yo |
A ㅇ at the start of a syllable is silent; at the end of a syllable it sounds like “ng”.
Speech style
Ends in -요. The everyday polite style, and a safe choice with shop staff, colleagues, strangers and anyone older than you.
Quick self-check
Test yourself before you move on. Tap an answer.
Question 1 What does “몰라요” mean?
Show the answer
Answer: I don’t know
Question 2 How do you say “I don’t know” in Korean?
Show the answer
Answer: 몰라요 mollayo
Learn this phrase by playing: typing drills and quizzes help it stick.
Practice in the gameMore phrases for this situation
- 됐어요No, thanks. / I’m good
- 이따 봐요See you later
- 여보세요Hello? (on the phone)
- 잘 자요Sleep well. / Good night
- 좋아요Good. / Sounds good
- 맞아요That’s right
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