부드럽게 돌려서 거절할 때 -> It would be difficult.
직접적으로, 그러나 예의를 갖춰서 거절할 때 -> I'm afraid I can't accept that.
직접적이고 단호하게 거절할 때 -> That's absolutely unacceptable.
[Dialogue 1]
Son: Mother, can I travel alone to India?
Mother: It would be difficult because traveling India alone is dangerous.
Son: Then, can I travel to India with my girlfriend?
Mother: I'm afraid I can't accept that because you two are not married yet.
Son: Then, can I marry her?
Mother: That's absolutely unacceptable because you haven't even finished your high school yet!
아직 답을 줄 준비가 되지 않았음을 말할 때 -> I can't say anything right now.
상대에게 기다려 달라고 말할 때 -> I'm afraid I can't give you the answer at the moment.
상대에게 기약 없는 기다림을 요구할 때 -> I'll let you know it later.
[Dialogue 2]
M: Will you marry me?
W: Well... I can't say anything right now.
M: What do you mean you can't say anything right now?
W: well... I mean I'm afraid I can't give you the answer at the moment.
M: Eh? What do you mean by "at the moment?"
W: Well... I'll let you know it later, okay?
M: No, It's not okay. please say "Yes!"