Core Pattern Rule: I will X, so you Y (-을/ㄹ 테니까)
This pattern connects the speaker's intention or plan with a subsequent suggestion, request, or command for the listener. The first clause with -을/ㄹ 테니까 establishes the reason, and the second clause tells the listener what to do.
Meaning & Usage
Meaning: "I will (do something) / It will probably (be something), so..."
When to use: Use it when you want to offer help, divide tasks, or provide reassurance by stating what you will do first. The second clause is almost always a command or suggestion.
Formation
It attaches directly to verb stems.
Vowel or ㄹ ending stem + -ㄹ 테니까
하다 (to do) → 할 테니까
살다 (to live/buy) → 살 테니까
기다리다 (to wait) → 기다릴 테니까
Consonant ending stem + -을 테니까
먹다 (to eat) → 먹을 테니까
찾다 (to find) → 찾을 테니까
내가 살 테니까 걱정 마. / 설거지는 내가 할 테니까 요리는 네가 해. / 금방 갈 테니까 기다려.
Common Combinations & Usage
This pattern excels in situations where you're coordinating actions with someone else. It creates a clear "I'll handle this, so you handle that" dynamic.
Offering Help & Reassurance
The speaker takes on a task to alleviate the listener's burden or worry.
Structure: [I will do something helpful] + 테니까 + [Don't worry / Rest / It's okay].
Example: 내가 운전할 테니까 마셔. (I'll drive, so you can drink.)
Dividing Roles
This is very common for assigning tasks between two people.
Structure: [I will do Task A] + 테니까 + [You do Task B].
Example: 설거지는 내가 할 테니까 요리는 네가 해. (I'll do the dishes, so you cook.)
Providing a Reason for a Request
The speaker's action makes the listener's next action possible or necessary.
Example: 보낼 테니까 확인해. (I'll send it, so check it.)