기다려야

In a sentence

• 기차가 올 때까지 기다려야 해요.

  You have to wait until the train arrives.

  Here, '기다려야' is used to express a necessity to wait until a specific action ('the train arriving') occurs.

• 비가 그칠 때까지 기다려야 했습니다.

  We had to wait until the rain stopped.

  In this sentence, '기다려야' shows a past obligation to wait until a certain condition ('the rain stopping') was met.

• 이 문제가 해결될 때까지 기다려야 할 것입니다.

  We will have to wait until this issue is resolved.

  This use of '기다려야' indicates a future necessity to wait for a resolution of a situation.