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谁能告诉我这两句话的区别:the book was not to be found 和the book was not

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谁能告诉我这两句话的区别:the book was not to be found 和the book was not to book
最好讲一下be + to be 的用法
不好意思,后一句是the book was not to find
谁能告诉我这两句话的区别:the book was not to be found 和the book was not
第一句:be + to be是指主语(the book)没有"被"发现,所以为了形成被动语态要用be+not to be done相当于have not been done;
第二句:主语应该是指人,应该还有一个主语是人的句子和这一句连在一起,如果没有就是省略了主语人,而实际上主语是人,不是the book;
例如:homework is not to be done.
=homework has not been done.
=homework is not to do,(I want to play basketball.)