The child must be taken care of.为什么take要用过去分词

问题描述:

The child must be taken care of.为什么take要用过去分词

这个句子是情态动词must的被动语态,他是这样构成的
must+be+动词的过去分词,所以这里面的take要用过去分词,意思是孩子必须要照顾,可以理解为The child must be taken care of (by his parents)