N이/가
Quick answer: N이/가 means marks the one that is or does something.
How to form it
Noun ending in a consonant → 이 · ending in a vowel → 가
In Korean: 받침 O → 이 받침 X → 가
What to know
은/는 says here is what I am talking about; 이/가 says here is the one. Questions with 뭐 take 이/가, which is why 이거가 뭐예요 sounds natural.
Examples
- 이거가 뭐예요?What is this?
- 그거가 뭐예요?What is that?
- 저거가 시계예요.That over there is the clock.
Where it's taught
HanDa Level 1 (TOPIK I), Lesson 3: 이거는 뭐예요? — What is this?. Also in the Level 1 book.
Go deeper: our full article on this pattern.
Practise N이/가 out loud
In the HanDa app this is Level 1, Lesson 3 — drills, a speaking check and an AI teacher that corrects what you say. Free for 7 days.