내가 ~했음에 틀림없다
I would have +pp
나라면 ~했을 것이다
I must have said something stupid.
You agreed to work on the project from hell?어렵기로 소문난 프로젝트를 하기로 한 거야?
I must have been out of my mind. 정신이 나가기라도 했나봐
I can't believe you missed the meeting this morning.
Sorry, I must have forgotten to set my alarm.
Susan was forced to take pay cut at work. 하는 수 없이 임금삭감을 받아들일 수밖에 없었다
That's terrible. 너무 안 됐다
I would have said, "No, thanks," and quit.
It must have been fun. 재미 있었겠다
boring/ exciting.
I wouldn't have dreamed about it. 나라면 꿈도 못 꾸었을 거예요
asking him out/ traveling alone
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