Korean grammar patterns › Level 3
-(으)ㄹ 테니까
since (I) will …; since it will probably … (+ request/advice)
Level 3 · TOPIK II · intermediate
How to use it
With a first-person subject it states the speaker's intention (I'll do X, so you…); with other subjects it gives the speaker's guess as a reason. Usually followed by a command, suggestion or advice. (테니까 = 터이니까)
Forming it
| 하다 | → 할 테니까 |
| 먹다 | → 먹을 테니까 |
| 춥다 | → 추울 테니까 |
| 학생 | → 학생일 테니까 |
The intention meaning is only for the speaker: 제가 할 테니까. ✗ 동생이 할 테니까 cannot mean 'my brother intends to'; it can only be a guess.
Examples
설거지는 제가 할 테니까 좀 쉬세요.
I'll do the dishes, so take a rest.
밖은 추울 테니까 따뜻하게 입고 나가요.
It'll be cold outside, so dress warmly when you go out.
Compared with similar patterns
-(으)니까 gives a known reason; -(으)ㄹ 테니까 gives an intention or a guess as the reason. -(으)ㄹ 텐데 sets up an expectation, often with concern or a contrast.