없을 테니

since there won’t be

→ 없다
phrase Rare #21,761
since there won’t be The ending -을 테니 expresses an expectation or assumption and introduces a reason for what follows.
KO: 오늘은 시간이 없을 테니 내일 이야기하자.
EN: There probably won’t be time today, so let’s talk tomorrow.

앞으론 서로 볼 일이 없을 테니 안됐군

It's too bad we'll never see each other again.

— 패신저 57 (1992)

다신 쓸 일 없을 테니

Since I'll never use it again.

— 택시 (1998)

좋은 변명은 없을 테니 묻지 않겠네

I won't ask, since you probably don't have a good excuse anyway.

— 어 퓨 굿 맨 (1992)

연기 때문에 제대로 달릴 수도 없을 테니 난 괜찮다

I’ll be fine, since I probably won’t even be able to run properly because of the smoke.

— 모노노케 히메 (1997)