Unit 16: Since I Will (-(으)ㄹ 테니까)

This Easy Korean grammar point combines two things you already know: -(으)ㄹ 터이다 (an intention/expectation) + -(으)니까 (since/because).

-(으)ㄹ 테니까 means "Since I will [do this]" or "Since it is expected to be [like this]". It is heavily used before giving advice, commands, or making requests.

Structure

Verb Stem + -(으)ㄹ 테니까

1. Vowel: -ㄹ 테니까 (하다 -> 할 테니까)
2. Consonant: -을 테니까 (먹다 -> 먹을 테니까)

Usage Types

1. When the subject is 'I': It shows your strong intention.
2. "I will do A, so you do B."
3. 제가 청소할 테니까 요리해 주세요. (I will clean, so please cook.)
4. When the subject is third-person/weather: It shows an expectation.
5. "It will probably be A, so you should do B."
6. 내일은 추울 테니까 따뜻하게 입으세요. (Since it will be cold tomorrow, dress warmly.)

Examples

• 제가 기다릴 테니까 천천히 오세요. (I will wait, so please come slowly.)
• 바쁠 테니까 내일 전화할게요. (You must be busy, so I will call you tomorrow.)