How to Say "I Don't Understand" in Korean — The 5 Survival Phrases Every Beginner Needs

When Korean Goes Too Fast — And It Will

I've been living in Seoul for 12 years and speak Korean fluently, but I vividly remember my first weeks here. Koreans were speaking at bullet-train speed, and I was just standing there nodding and smiling while understanding absolutely nothing. The problem? I didn't even know how to say "I don't understand."

Don't make the same mistake I did. The five phrases I'm about to teach you are your lifelines. They'll get you out of any awkward situation — whether at a restaurant, on the subway, or facing a chatty taxi driver.

Phrase #1: 모르겠어요 — "I Don't Understand"

This is THE number one phrase to know:

• 모르겠어요 (moreugesseoyo) — I don't understand / I don't know

This expression comes from the verb 모르다 (moreuda — to not know). The -겠- conjugation adds a polite nuance of uncertainty: "I can't seem to understand."

Variations

My favorite: 잘 모르겠어요 (jal moreugesseoyo). The 잘 (jal — "well") softens the phrase. Instead of saying "I DON'T understand," you're saying "I don't understand WELL." Koreans appreciate this nuance — it's more humble.

Personal Anecdote

The first time I used 모르겠어요 was in a taxi. The driver was asking me questions about my destination and firing off sentences. I eventually let out a slightly desperate 모르겠어요. He burst out laughing, pulled out his phone, and showed me Naver Maps. Problem solved. Koreans are incredibly patient when they see you're making an effort.

Phrase #2: 다시 한 번 말해 주세요 — "Can You Say That Again?"

When you almost understood but not quite:

• 다시 한 번 말해 주세요 (dasi han beon malhae juseyo) — Can you say that again please?

Let's break this down:

• 다시 (dasi) — again
• 한 번 (han beon) — one time
• 말해 주세요 (malhae juseyo) — please tell me

It's a long phrase, I know. But it's so useful that you'll memorize it quickly through sheer repetition. And trust me, in the beginning, you'll use it a lot.

The Short Version

If the full phrase seems too long, you can simply say:

• 뭐라고요? (mworagoyo?) — Sorry? What?
• 네? (ne?) — Pardon? (very short, very polite)

The 네? is magical. A simple "ne?" with a rising tone is enough for your conversation partner to repeat themselves. It's the Korean version of "sorry, what?"

Phrase #3: 천천히 말해 주세요 — "Please Speak Slowly"

My favorite phrase when I was a beginner:

• 천천히 말해 주세요 (cheoncheonhi malhae juseyo) — Please speak slowly

Breakdown:

• 천천히 (cheoncheonhi) — slowly
• 말해 주세요 (malhae juseyo) — please speak

Spoken Korean is FAST. Koreans among themselves swallow syllables, contract words, and speak at breakneck speed. This phrase is your emergency brake.

Combining Phrases

The ultimate beginner combo:

모르겠어요. 천천히 말해 주세요. (moreugesseoyo. cheoncheonhi malhae juseyo.) I don't understand. Please speak slowly.

By chaining these two phrases, you show that you WANT to understand but it's just too fast. Koreans immediately slow down and often simplify their vocabulary too.

Phrase #4: 한국어를 못해요 — "I Can't Speak Korean"

Sometimes, you need to be honest:

• 한국어를 못해요 (hangugeoreul mothaeyo) — I can't speak Korean
• 한국어를 잘 못해요 (hangugeoreul jal mothaeyo) — I don't speak Korean well

Breakdown:

• 한국어 (hangugeo) — the Korean language
• 를 (reul) — object particle
• 못해요 (mothaeyo) — can't do

The Humbler Version

The version with 잘 (jal — "well") is more humble and Koreans always react better to it:

• 한국어를 조금밖에 못해요 (hangugeoreul jogeumbakkeh mothaeyo) — I can only speak a little Korean

This phrase is brilliant because it implies you speak A LITTLE. So your conversation partner will simplify their Korean instead of switching directly to English.

Cultural Tip

In Korea, saying "I don't speak Korean" usually triggers one of these reactions:

1. The person switches to English (convenient but frustrating when you want to practice)
2. The person speaks more slowly (what we want!)
3. The person calls someone who speaks English (common in restaurants)

My advice: if you WANT to practice, say 한국어를 조금 해요 (hangugeoreul jogeum haeyo — I speak a little Korean) instead. It encourages the person to continue in Korean.

Phrase #5: 영어 되세요? — "Do You Speak English?"

The last resort phrase:

• 영어 되세요? (yeongeo doeseyo?) — Do you speak English?
• 영어 할 수 있어요? (yeongeo hal su isseoyo?) — Can you speak English?

When to Use It

Personally, I recommend using this phrase only as a last resort:

• Medical emergency
• Complex administrative situation
• You're completely lost

Why? Because many Koreans have studied English for years but are terrified of speaking it. Asking them to speak English can stress them out as much as you're stressed about speaking Korean.

The Smart Alternative

Instead of asking "do you speak English?", try:

• 번역기 써도 돼요? (beonyeokgi sseodo dwaeyo?) — Can I use a translator?

Then pull out Google Translate or Papago (Naver's Korean translation app — much better than Google for Korean). Show your screen to the other person. It's magical and puts everyone at ease.

Practical Situations — Which Phrase to Use When

Bonus: Comprehension Expressions

To show that you DO understand (or to buy time):

The 네, 네 (ne, ne) is the Korean equivalent of "uh huh" or "mm hmm." Use it to show you're listening, even if you don't understand everything. It's culturally important — Koreans find silence unsettling during a conversation.

My Experience After 12 Years

Today, I don't need these phrases for myself anymore. But I teach them to every French expat I meet in Seoul. The first thing I tell them: "Learn these 5 phrases BEFORE learning to say hello." Why? Because knowing how to say hello won't save you when a taxi driver fires 10 questions at you. But knowing how to say "speak slowly" will save you every single day.

Quick Reference

Ready to Move Beyond "I Don't Understand"?

These survival phrases are your safety net. But the goal is to not need them anymore! On Seonsaengnim, you can progress in Korean through K-Pop, with a teacher available 24/7 and interactive lessons.

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