-을 테다
-을 테다: Will (For Sure) — Strong Expectation Or Will
Pattern with 터 「005」 after -(으)ㄹ: planned/expected/intended — often contracted 테다.
How to form it
| When | Form | Example |
|---|---|---|
| Full | -(으)ㄹ 터이다 | 갈 터이다 / 할 터이다 |
| Contracted | -(으)ㄹ 테다 | 갈 테다 / 할 테야 / 할 테니까 |
-을 테다 marks a strong expectation about what follows — will (for sure)… from the speaker’s stance.
Why this is hard
It is stronger than soft -을 것 같다. Learners under-fire it as mild guess or over-fire it as destiny. Speaker conviction is the colour — often plan, warning, or reassurance.
What it does
You project what you expect to happen, with weight.
내일은 바쁠 거예요. — 바쁠 테니 일찍 자요.
알고 있을 테니까 말 안 했어요.
비가 올 테니 우산을 가져가요.
괜찮을 테니까 걱정 마세요.
Forms
-을 테다 and related -을 테니 / -을 테니까 reason frames are the classroom cluster.
When not to use it
Do not treat it as weak 것 같다 only. Do not use it for past completed report without expectation. Do not ignore the speaker-stance flavour.
Neighbours — and why they differ
| Form | Why it is not this slot |
|---|---|
| -을 것 같다 | Softer seems / I think. |
| -을 법하다 | Likely — cooler prediction. |
| -을 테면 | If you are going to — condition on a plan. |
Advice lines often ride -을 테니: because I expect X, do Y. Keep the expectation and the advice both visible.
Classroom examples should keep the meaning concrete: one clear scene beats three vague glosses. If a neighbour form already says the same thing more lightly, prefer the lighter tool unless register demands this one.
Ask: am I projecting a strong expectation? If yes, -을 테다. If you only soft-guess, use -을 것 같다.
Do not confuse it with
Taught alongside this
On the jabi learning path, this appears in 표현 (expression) — Advanced Korean 1, Unit 4, on the theme of expression. These come with it:
Words used above
Quick check
No sign-up, no score saved — just see if it stuck.
1. You are volunteering for the chore yourself so your friend can rest — firm speaker will, not a soft guess. Which line?


2. Which line uses the contracted classroom shape 할 테야 from the forms table?


3. Same stem 하다 — which states firm will, not ‘if that’s the plan’ or ‘will, but’?


Common questions
Dictionary?
우리말샘 터 「005」: after -을 — plan, guess, or will. 터이다 contracts to 테다.
Vs -을 법하다?
법하다 = likely. 테다 often carries speaker resolve or firm expect.
테니까 / 텐데?
Same 터 family: 할 테니까, 할 텐데 — space before 테.
Vs -겠어?
-겠- is another future/guess seat. 테다 leans plan/expect ground.