'은/는' VS '이/가'

For many Korean learners, understanding when to use '은/는' and '이/가' can be tricky. 

But don't worry! 

Here's an easy way to remember the difference with clear examples.


'은/는'

1. Introducing Yourself or Others

- ‘은/는’ helps emphasize the subject during introductions.

<Examples>

- 저는 준이에요.  (I am Jun)

- 이 사람은 제 친구예요.  (This person is my friend.)

- 수빈 씨는 한국어 선생님이에요.  (수빈 is a Korean teacher.)

2. Introducing a New Topic in a Conversation

- '은/는' often marks a shift to a new topic or subject.

- '은/는' signals to the listener that the speaker is shifting the focus to a new subject.

<Examples>

가:  오늘 날씨가 정말 좋아요.  (Today's weather is really nice.)

나:  맞아요. 정말 따뜻하네요.  (That's right. It's really warm.)

가:  그런데, 요즘은 코로나 상황이 좀 나아진 것 같아요. 

      (By the way, it seems like the COVID-19 situation has improved recently.)

가:  저는 제주도에 가본 적이 없어요.  (I have never been to 제주도)

나:  정말요? 제주도는 아름다워요. 꼭 가 보세요. (Really? 제주도 is beautiful. You should definitely visit.)

가:  네, 꼭 가 볼게요. 그럼, 한국의 다른 섬들은 어떤가요? 

      (Yes, I will definitely go. Then, how are the other islands in Korea?)

3. To Compare or Contrast Topics 

- '은/는' is crucial for making comparisons and contrasts
- '은/는' emphasizes the difference between the two topics.

<Examples>

- 저는 한국 사람이에요. 친구는 일본 사람이에요.  (I am Korean.  My friend is Japanese.)

- 이 과일은 달아요. 하지만 저 과일은 셔요.   (This fruit is sweet. But that fruit is sour.)

- 주말에는 쉬어요. 평일에는 일해요.  (I rest on weekends. I work on weekdays.)


4. Stating General Facts or Rules 

- '은/는' is used to describe facts or truths in a neutral tone.

<Examples>

- 물은 섭씨 100도에서 끓어요.  (Water boils at 100 degrees Celsius.)

- 알레스카는 겨울에 정말 추워요.  (Alaska is very cold in winter.)

- 한국에서는 음식을 먹을 때 젓가락을 사용해요.  (In Korea, people use chopsticks when eating food.)

'이/가'

1. Answering questions like 'Who?' or 'What?

- '이/가' is used to clearly identify the subject in response to "Who?" or "What?" questions. 
- '이/가' emphasizes the person or thing being talked about.

<Examples>

가: 누가 이겼어요?  (Who won?)
나: 민지가 이겼어요.  (민지 won.)

가: 무엇이 필요해요?  (What do you need?)
나: 물이 필요해요.  (I need water)

2. To emphasize what exists or owns something.

- '이/가' is often used with verbs related to possession or existence.

<Examples>

- 좋은 아이디어가 있어요. (I have a good idea.)

- 돈이 많아요.  (I have a lot of money.)

- 지금 시간이 없어요.  (I don’t have time right now.)

- 방에 사람이 있어요.  (There is a person in the room.)

- 교실에 지현 씨가 없어요.  (지현 is not in the classroom.)

3. Focusing on "what’s happening" to the subject.

- '이/가' highlights the subject experiencing an action or change, making it clear what is happening.

<Examples>

- 날씨가 추워졌어요.  (The weather has become cold.)

- 꽃이 피었어요. (The flowers have bloomed.)

- 아이가 울고 있어요.  (The child is crying.)

4. Introducing new or unknown information.

- '이/가' is used to bring attention to something new

- '이/가 'is used to introduce a subject that hasn’t been mentioned before.

<Examples>

- 공원에 갔는데, 나무 위에 새가 있었어요.

  (I went to the park, and there was a bird on the tree.)

- 어제 새 가방을 샀어요. 이 가방이 제가 산 가방이에요.

  (Yesterday, I bought a new bag. This bag is the one I bought.)

[Here's a fun tip!]

Think of '은/는' as a spotlight:   It highlights the topic you're talking about.

Think of '이/가' as a magnifying glass:   It zooms in to show the specific subject.

[Your friend asked, '여기가 어디예요?'  How would you respond?]

When someone asks, "여기가 어디예요?" (Where is this place?), 

both "여기는 제가 자주 가는 카페예요." and "여기가 제가 자주 가는 카페예요." can be correct, 

but they have slightly different nuances.

1) 여기는 제가 자주 가는 카페예요.   (As for this place, it is a cafe I often go to.)

- Used when introducing the place as a general topic.

- The speaker may continue talking about the cafe  (e.g., its atmosphere, menu, etc.).

💡 Think of '여기는' as introducing the place and expecting further discussion.

2) 여기가 제가 자주 가는 카페예요.  (This place is the cafe I often go to.)

- Used when identifying this specific place as the answer to the question.

- The speaker is emphasizing that this is the place they frequent.

💡 Think of '여기가' as pinpointing the location as an answer.

If you have any additional questions, feel free to ask in the comments!😊