What are “이/가”?
The particles “이/가” are used in Korean to indicate the subject of a sentence. The subject refers to the doer or the entity experiencing a state or condition.
Forms and Usage
- Without a final consonant (받침이 없음): Use
가
Example: 김치 → 김치가 (kimchi) - With a final consonant (받침이 있음): Use
이
Example: 밥 → 밥이 (rice)
Usage
1) Indicating the Subject
“이/가” is used to mark the subject responsible for an action or in a specific state.
- 시험이 어려워요. (The test is difficult.)
- 나무가 커요. (The tree is big.)
- 물이 새요. (The water is leaking.)
- 내일 엄마가 여행을 간다. (My mom will go on a trip tomorrow.)
2) Asking Questions About a Subject
“이/가” is used with interrogative words to form questions about the subject.
- 누가 문제를 풀었어요? (Who solved the question?)
3) Emphasizing the Subject
“이/가” can emphasize the subject in a sentence to distinguish it from others.
- 이 과자가 맛있네요. (This snack is delicious [as opposed to other snacks].)
4) Expressing Emotions or Psychological States
“이/가” is used to indicate the object of preference or emotion, such as liking, disliking, or fear.
- 저는 귀신이 무서워요. (I fear ghosts.)
- 저는 이 노래가 좋아요. (I like this song.)
Tips for Using “이/가”
A. When Combined with Pronouns
- 나 → 내가 (Incorrect: 나가)
- 저 → 제가
- 너 → 네가
- 누구 → 누가
B. Difference Between “이/가” and “은/는”
“이/가”: Used to introduce new information.
“은/는”: Used to emphasize contrast or shared information.
Examples:
- A: 우체국이 어디를 가면 있나요? (Where can I find a post office?)
- B: 우체국은 저쪽에 있어요. (The post office is in this direction.)
Practice Quiz
Fill in the blanks with the correct subject marker.
- 밥___ 맛있어요. (The rice is tasty.)
- 물___ 새요. (The water is leaking.)
- 누___ 문제를 풀었어요? (Who solved the question?)
- 저는 이 노래___ 좋아요. (I like this song.)
Answers
- 밥이 맛있어요. (The rice is tasty.)
- 물이 새요. (The water is leaking.)
- 누가 문제를 풀었어요? (Who solved the question?)
- 저는 이 노래가 좋아요. (I like this song.)