거절하기  

Terribly sorry, but I don't have time this week.
죄송하지만, 이번주는 시간이 없어요

I'm awfully sorry, but I'm afraid I have to break our date.
정말 죄송하지만, 약속을 못지킬것 같아요

Unfortunately I have an appointment.
I'm afraid I've got an appointment then.
죄송하지만, 선약이 있어요

I'd love to, but I can't make it tomorrow evening.
I'd love to, but tomorrow evening won't be any good for me.
그러고 싶지만 내일 저녁에는 안되겠네요

I can't make it today, How about tomorrow?
오늘은 안되겠는데, 내일은 어때요?

   약속을 변경할 때  

I'm sorry, but I have to cancel our appointment.
죄송합니다만, 우리 약속을 취소해야겠습니다.

I'm afraid I'd like to change the place of our appointment.
죄송합니다만, 약속장소를 달리 하면 좋겠습니다.

I'm afraid I'll be an hour late for our appointment.
유감스럽게도, 약속에 한시간정도 늦을 것 같습니다.

Could we reschedule the date?
날짜를 다시 정할수 있을까요?

Could you change the place of the meeting?
회의장소를 바꿀 수 있을까요?