suppose sb./sth.(to be) +形容词 / 介词短语的结构与suppose sb./sth.to ha

suppose sb./sth.(to be) +形容词 / 介词短语的结构与suppose sb./sth.to have done 的结构的意思是
还有suppose ＋ it ＋形容词 / 名词＋ to do 的结构.
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这两个里面suppose都是“认为、猜测”的意思,前者
suppose sb./sth.(to be) +形容词 / 介词短语的结构是 认为某人/某事是……,例如 suppose sb to be innocent 认为某人是无辜的；
后者是suppose sb./sth.to have done 是 认为某人/某事已经发生了,例如They supposed the paper to have been lost during the war.他们认为那个文件在战争期间丢失了.