언제, 어느 때
At what time or in what circumstances.
예문:
"When will the final results be announced to the public?"
"When did you first notice the strange noise in the engine?"
~하는 때, ~한 시기
At or on which time or circumstance, used to introduce a clause modifying a noun of time.
예문:
"I still remember the day when we first met in the park."
"There are times when I feel like giving up on everything."
~할 때, ~하면
At or during the time that; as soon as.
예문:
"Please call me when you arrive at the hotel safely."
"He was reading a book when the lights suddenly went out."
~인데도, ~임을 보면
In view of the fact that; although or whereas.
예문:
"How can you complain about being bored when you have so much work to do?"
"She decided to walk home when she could have easily taken a taxi."
때, 일시, 시기
The time or occasion of an event.
예문:
"The when and where of the wedding have not been decided yet."
"We need to focus on the when of the project launch to ensure success."