이전까지

이전까지

"Until now" or "up to this point."

Here, '이전까지' functions as a time expression meaning 'before', suggesting a timeframe prior to now or a specified past event.

이전까지는 우리가 그런 생각을 한 적이 없었다.

We had never thought about that before.

In this sentence, '이전까지' emphasizes a temporal reference to all material learned up to now, providing comprehension of past learnings.

이전까지 배운 내용을 복습하며 시험 준비를 하세요.

Prepare for the test by reviewing the material learned previously.

Here, '이전까지' describes experiences accumulated up to a certain point in the past, forming a basis for subsequent actions.

그는 이전까지의 경험을 바탕으로 새로운 프로젝트를 시작했다.

He started a new project based on his previous experiences.