Learn 못 vs 안 in Korean with simple examples, real-life dialogues, and easy tips so you can stop mixing them up.
못 vs 안 in Korean: Know the Difference and Avoid Mixing Them Up
If you’ve ever wondered whether to say 안 해요 or 못 해요, you’re not alone.
This is one of those Korean grammar basics that looks simple at first, but can feel confusing when you start making real sentences.
Both 안 and 못 make a sentence negative. But they do not mean the same thing.
Here’s the simple difference:
안 = don’t / does not
못 = can’t / unable to
Let’s walk through this together with simple examples and real-life situations.
The simple difference between 안 and 못
Use 안 when someone chooses not to do something.
Use 못 when someone cannot do something, even if they want to.
For example:
안 먹어요.
I don’t eat it.
못 먹어요.
I can’t eat it.
These feel very different.
If you say 안 먹어요, it sounds like you choose not to eat it. Maybe you don’t like it. Maybe you don’t want it.
If you say 못 먹어요, it sounds like you are unable to eat it. Maybe you are full. Maybe you are allergic. Maybe it is too spicy.
This small difference is really important in everyday Korean.
Use 안 when you choose not to do something
안 means “do not” or “does not.”
It shows that someone is not doing something by choice, habit, preference, or situation.
Examples:
저는 커피를 안 마셔요.
I don’t drink coffee.
오늘 학교에 안 가요.
I’m not going to school today.
고기를 안 먹어요.
I don’t eat meat.
TV를 안 봐요.
I don’t watch TV.
This is very useful when you learn Korean for beginners because you can make many simple negative sentences with 안.
The pattern is:
안 + verb
Examples:
가요 = go
안 가요 = don’t go
먹어요 = eat
안 먹어요 = don’t eat
봐요 = watch / see
안 봐요 = don’t watch / don’t see
마셔요 = drink
안 마셔요 = don’t drink
Simple, right?
You’re doing great. Let’s keep going.
Use 못 when you cannot do something
못 means “can’t” or “unable to.”
It shows that something stops you from doing the action.
Examples:
저는 수영을 못 해요.
I can’t swim.
오늘 못 가요.
I can’t go today.
매운 음식을 못 먹어요.
I can’t eat spicy food.
한국어를 아직 잘 못 해요.
I can’t speak Korean well yet.
못 often has the feeling of “I want to, but I can’t” or “I’m not able to.”
This is very helpful for Korean speaking practice, because you will use it often when explaining your situation.
For example:
죄송해요, 오늘 못 만나요.
Sorry, I can’t meet today.
지금은 전화를 못 받아요.
I can’t answer the phone right now.
아직 한글을 잘 못 읽어요.
I can’t read Hangul well yet.
If this feels hard at first, that’s completely normal. The more you connect it to real situations, the easier it gets.
안 vs 못 side by side
Let’s compare them in simple daily sentences.
1. Eating
김치를 안 먹어요.
I don’t eat kimchi.
김치를 못 먹어요.
I can’t eat kimchi.
The first sentence sounds like a choice or preference.
The second sentence sounds like there is a reason you cannot eat it.
Maybe it is too spicy. Maybe your stomach hurts. Maybe you have a food restriction.
2. Going somewhere
오늘 학교에 안 가요.
I’m not going to school today.
오늘 학교에 못 가요.
I can’t go to school today.
안 가요 sounds like you are not going.
못 가요 sounds like something prevents you from going.
Maybe you are sick. Maybe there is no bus. Maybe you have another plan you cannot change.
3. Speaking Korean
한국어를 안 해요.
I don’t speak Korean.
한국어를 못 해요.
I can’t speak Korean.
But be careful.
If you are learning Korean, it is more natural to say:
한국어를 잘 못 해요.
I can’t speak Korean well.
Or:
한국어를 조금 해요.
I speak a little Korean.
These sound softer and more realistic.
This is a great phrase for Korean conversation practice with native speakers.
Real-life dialogue 1: At a restaurant
A: 매운 음식 먹을 수 있어요?
Can you eat spicy food?
B: 아니요, 매운 음식은 잘 못 먹어요.
No, I can’t really eat spicy food.
A: 그럼 안 매운 걸로 주문할게요.
Then I’ll order something not spicy.
This is a very useful situation for Korean restaurant phrases.
Notice:
못 먹어요 = I can’t eat it
안 매운 = not spicy
Both are negative, but they work differently.
Real-life dialogue 2: Making plans
A: 오늘 저녁에 만날래요?
Do you want to meet this evening?
B: 미안해요, 오늘은 못 만나요.
Sorry, I can’t meet today.
A: 괜찮아요. 내일은 어때요?
That’s okay. How about tomorrow?
B: 내일은 괜찮아요!
Tomorrow works!
Here, 못 만나요 sounds natural because the person cannot meet today.
If they said 오늘은 안 만나요, it might sound more like “I’m not meeting today” or even “I choose not to meet today.”
That can feel a little cold in some situations.
Real-life dialogue 3: Travel situation
A: 버스 탈 거예요?
Are you going to take the bus?
B: 아니요, 버스를 잘 못 타요. 지하철 탈게요.
No, I’m not good at taking the bus. I’ll take the subway.
A: 지하철역은 저쪽에 있어요.
The subway station is over there.
This kind of sentence is useful in Korean travel phrases.
잘 못 타요 means “I can’t take it well” or “I’m not good at using it.”
You can use 잘 못 with many skills:
한국어를 잘 못 해요.
I can’t speak Korean well.
요리를 잘 못 해요.
I’m not good at cooking.
노래를 잘 못 해요.
I’m not good at singing.
Common mistake: Using 안 when you mean 못
Let’s say your friend asks:
내일 올 수 있어요?
Can you come tomorrow?
You want to say, “I can’t come.”
Say:
내일 못 가요.
I can’t go tomorrow.
Not:
내일 안 가요.
내일 안 가요 means “I’m not going tomorrow.” It may sound like a choice.
Of course, sometimes that is what you mean. But if you are trying to explain that you are busy, sick, or unable to go, use 못.
Common mistake: Using 못 when it is just a choice
Let’s say someone asks if you drink coffee.
If you simply do not drink coffee, say:
커피를 안 마셔요.
I don’t drink coffee.
If you say:
커피를 못 마셔요.
I can’t drink coffee.
It sounds like there is a reason you cannot drink it. Maybe caffeine makes you sick. Maybe your doctor told you not to drink it.
So ask yourself:
Is it my choice or preference? Use 안.
Is something stopping me? Use 못.
How to use 안 and 못 with 하다 verbs
Many Korean verbs end in 하다.
공부하다 = to study
운동하다 = to exercise
요리하다 = to cook
일하다 = to work
전화하다 = to call
With 하다 verbs, 안 and 못 usually go before 하다.
Examples:
공부 안 해요.
I don’t study.
공부 못 해요.
I can’t study.
운동 안 해요.
I don’t exercise.
운동 못 해요.
I can’t exercise.
오늘 일 안 해요.
I’m not working today.
오늘 일 못 해요.
I can’t work today.
Both are common in real Korean.
What about 안 공부해요?
You may also see:
안 공부해요.
I don’t study.
This is understandable, but 공부 안 해요 sounds more natural in everyday speech.
For many noun + 하다 verbs, Koreans often put 안 or 못 before 하다.
More natural:
요리 안 해요.
I don’t cook.
전화 못 해요.
I can’t call.
운동 안 했어요.
I didn’t exercise.
오늘 공부 못 했어요.
I couldn’t study today.
This is a small detail, but it helps you sound more natural when you learn Korean.
못 vs 잘 못
못 means “can’t.”
잘 못 means “can’t do well” or “not good at.”
Compare:
한국어를 못 해요.
I can’t speak Korean.
한국어를 잘 못 해요.
I can’t speak Korean well.
The second one sounds softer and more common for learners.
Here are more examples:
수영을 못 해요.
I can’t swim.
수영을 잘 못 해요.
I can’t swim well.
요리를 못 해요.
I can’t cook.
요리를 잘 못 해요.
I’m not good at cooking.
If you are talking about a skill, 잘 못 is often your friend.
Past tense: 안 했어요 vs 못 했어요
You can also use 안 and 못 in the past tense.
안 했어요 = didn’t do
못 했어요 = couldn’t do
Examples:
숙제를 안 했어요.
I didn’t do my homework.
숙제를 못 했어요.
I couldn’t do my homework.
The first one sounds like you did not do it.
The second one sounds like you were not able to do it.
More examples:
어제 운동을 안 했어요.
I didn’t exercise yesterday.
어제 운동을 못 했어요.
I couldn’t exercise yesterday.
친구를 안 만났어요.
I didn’t meet my friend.
친구를 못 만났어요.
I couldn’t meet my friend.
This is very useful for Korean real-life dialogues, because people often explain what happened and why.
Future plans: 안 할 거예요 vs 못 할 거예요
You can also use them for future plans.
안 할 거예요 = I’m not going to do it
못 할 거예요 = I won’t be able to do it
Examples:
오늘 공부 안 할 거예요.
I’m not going to study today.
오늘 공부 못 할 거예요.
I won’t be able to study today.
내일 안 갈 거예요.
I’m not going tomorrow.
내일 못 갈 거예요.
I won’t be able to go tomorrow.
Again, 안 sounds more like a choice.
못 sounds more like a limitation.
A simple memory trick
Ask yourself this:
“Is it a choice?”
Use 안.
“Is there a reason I can’t?”
Use 못.
For example:
I don’t drink coffee because I don’t like it.
커피를 안 마셔요.
I can’t drink coffee because caffeine makes me feel bad.
커피를 못 마셔요.
I’m not going to the party because I don’t want to.
파티에 안 가요.
I can’t go to the party because I have work.
파티에 못 가요.
This simple question can help you avoid mixing them up.
Quick practice: Choose 안 or 못
Try these before checking the answers.
- I don’t eat meat.
고기를 ___ 먹어요.
- I can’t eat meat.
고기를 ___ 먹어요.
- I’m not going today.
오늘 ___ 가요.
- I can’t go today.
오늘 ___ 가요.
- I don’t watch TV.
TV를 ___ 봐요.
- I can’t watch TV right now.
지금 TV를 ___ 봐요.
Answers:
- 고기를 안 먹어요.
- 고기를 못 먹어요.
- 오늘 안 가요.
- 오늘 못 가요.
- TV를 안 봐요.
- 지금 TV를 못 봐요.
Nice work. These tiny choices make your Korean much clearer.
How to practice 못 and 안 naturally
Try making sentences from your real life.
Use 안 for your habits or preferences:
커피를 안 마셔요.
I don’t drink coffee.
아침에 운동 안 해요.
I don’t exercise in the morning.
매운 음식을 안 먹어요.
I don’t eat spicy food.
Use 못 for things you cannot do right now:
오늘 공부 못 해요.
I can’t study today.
지금 전화 못 해요.
I can’t call right now.
아직 한국어를 잘 못 해요.
I can’t speak Korean well yet.
Say them out loud. This helps with Korean speaking practice because your mouth needs to get used to the rhythm.
You do not need to memorize everything at once. Just start with a few sentences that match your real life.
Final takeaway
안 and 못 both make negative sentences, but they feel different.
Use 안 for “don’t” or “doesn’t.”
안 먹어요.
I don’t eat it.
안 가요.
I don’t go.
안 해요.
I don’t do it.
Use 못 for “can’t” or “unable to.”
못 먹어요.
I can’t eat it.
못 가요.
I can’t go.
못 해요.
I can’t do it.
The key is simple:
안 = I don’t do it.
못 = I can’t do it.
Once you understand that feeling, Korean becomes much easier to use in real conversations.
And remember: making small mistakes is part of learning. Every time you notice the difference, you are building stronger, more natural Korean.
