Intermediate Grammar #4: ~(으)ㄹ 테니까 “Since it might…you should”

~(으)ㄹ 테니까:

  • Equivalent to “since it might…” or “since he/she might…”
  • Gives a suggestion to the listener
  • A combination of ~(으)ㄹ 터이다 (gives an intention) and ~(으)니까 (expresses a reason)
  • 1st clause: provides a reason for…
  • 2nd clause: …the suggestion or advice


  • Can also be used at the end of a sentence (~(으)ㄹ 테니까요)
  • Only for first person subjects
  • Only verbs can precede it, but no past tense verbs
  • Difference: ~(으)ㄹ 텐데 = an actual situation for giving an assumption
  • Difference: ~(으)ㄹ 테니까 = the reason for giving an assumption (future tense, assumed)
  • Difference: 때문에 = the actual reason for something (past/present tense, actual)
  • CANNOT be used with 걱정이다, 고맙다, 미안하다



  • 과거: ~았/었을 테니까
  • 현제/미래: ~(으)ㄹ 테니까


  • 과거: 였을/이었을 테니까
  • 현재/미래: 일 테니까



  • A: 초콜렛을 많이 먹으면 살 찔테니까!
    (You might get fat if you eat lots of chocolate!)
  • V: 나쁜 습관을 만들었을 테니까 삶은 지금 부터 더 나빠질 거예요.
    (Since it looks like you made a bad habit, your life will get worse from now.)
  • N: 장차 배우가 되려는 사람이었을 테니까 배우학교에 다녀세요.
    (Since he’s a guy who wants to be a future actor, he ought to go to acting school.)
  • A: 그 책상이 고장났을 테니까 깍까 주세요.
    (Since the desk looks like it was broken, you should give me a discount.)
  • V: 그 영화가 좋았을 테니까 우리도 보자!
    (Since that movie looks like it was good, we should watch it too!)
  • N: 한국의 전자 제품이었을 테니까 든든해요.
    (Since that’s a Korean electronic device, it’s probably strong.)


  • A: 비 올 테니까 우리 집으로 가겠습니다.
    (Since it looks like rain, we should go home.)
  • V: YB 지금 제일 유명한 노래를 불을 테니까 우리 같이 부르자.
    (Since YB is now singing their most famous song, you should sing along.)
  • A: 랏데가 쓸 테니까 스럽 조금 넣세요.
    (Since the latte might be bitter, you should add syrup.)
  • A: 대통령은 바쁠 테니까 예약을 해야 해요.
    (Since the President might be busy, you should make a reservation.)
  • V: 운동을 열심히 하기 데문에 피곤할 테니까 꼭 일찍 자야 해.
    (You’re probably tired from all the exercise, so you should go to bed early.)
  • N: 이 것은 그 회사의 전화번호일 테니까 연락 해 주세요.
    (Since this is probably the company’s phone number, you should call it.)

**These are notes from Korean Grammar in Use: Intermediate. For more in-depth explanations, buy the book.

How goes your study? Any more tips?