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 Chapter 4. 조동사
23. 조동사 have p.p.

Point
현재시점에서 과거의 내용을 추론하는 표현으로, 개연적인 경우 may(will) have+p.p.

필연적인 경우 must(can't) have+p.p.를 쓴다.
should have + p.p 는 과거사실에 대한 후회, 유감을 뜻한다.

Practice
․ Because of your being late, we have no choice but to give it up. You should [send / have sent] me that file earlier.

․ Mary is a very spoilt child. She [should have been / must have been] raised so by her step-parents.

․ The ministry of Agriculture and Forestry cautioned that about 500 chickens from the Ulsan farm [have been / had been] already sold to restaurants nearby and raised the possibility that consumers [may eat / may have eaten] disease-infected chicken.
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