-기만 하다
Used to express that someone exclusively does one thing and nothing else, often with a nuance of criticism or exasperation.
Summary
Equivalent
All one does is... / Just keep doing...
Also: -(으)ㄹ 뿐이다 (Only/nothing more — more formal, used for single events)
Example
All my younger sibling does is play games at home. I wish they'd go out.
동생은 집에서 게임만 하기만 해요. 좀 나가지.
Grammar rules
- '-기만 해요' implies the person does only this and refuses or fails to do anything else.
- Often seen in complaints: '먹기만 해요' (all they do is eat).
- Can also be used positively: '좋기만 해요' (it's nothing but good).
Patterns
Verbs (Exclusively / Only Ever)
Present/Past · Verb Stem + 기만 하다
Adjectives (Exclusively This State)
Present · Adj Stem + 기만 하다
Example sentences
All my younger sibling does is play games at home. I wish they'd go out.
동생은 집에서 게임만 하기만 해요. 좀 나가지.
This cake is just sweet and nothing else, so it's not great.
이 케이크는 달기만 해서 별로예요.
Why do you just keep laughing? Please answer.
왜 웃기만 해요? 대답 좀 해 줘요.
Conversation
A: Why do you look so tired lately?
요즘 왜 이렇게 피곤해 보여요?
B: All I've been doing lately is work and I haven't been able to rest.
요즘 일하기만 하고 쉬지를 못했거든요.
Practice
Fill in the blank
Express exclusive action or state using '-기만 하다'.
Only studying.
Only getting better.