1.아쉬움
I should have brought it. 아~ 내가 그걸 가져왔어야 했는데.
I should have sold it. 아~ 내가 그걸 팔았어야 했는데.
I should have sent it. 아~ 내가 그걸 보냈어야 했는데.
I should have stayed home. 내가 집에 있었어야 했는데.
You should have told the truth. 너가 사실을 말했어야지.
You should have accepted it. 너가 받아 들였어야지.
2.부정문
I shouldn’t have brought it. 아~ 내가 가져오지 말았어야 했는데.
3.복습 (능력 / 의도 / 의무)
I could have done it. 내가 할수도 있었는데
I should have done it. 내가 했어야 했는데.
I would have done it. 내가 했었을 텐데.
I would have seen it. 내가 봤었을 텐데.
I should have seen it. 내가 봤어야 했는데.
I could have seen it. 내가 볼 수도 있었는데.
출처 : 야나두
