학원 샘이 프린터물로 나눠준 문제에서
If the packaging equipment had arrived by now, the store could have sold much more or its stock
than it has.
1.여기서 arrive가 자동사인건가요?? 자동사라서 arrived뒤에 목적어가 없나요??
2.had been arriving은 안되는건가요?? 가정법 과거완료가 조건절이 had pp라서 그냥 had arrived인건가요??
2