英语达人请进,帮忙分析一下这个句子的结构 句式 语法,句子不太理解,

题目

英语达人请进,帮忙分析一下这个句子的结构 句式 语法,句子不太理解,
句子：Dentists say it is important to find soft toothbrushes made especially for babies and to use them very gently.

答案

it is important to find soft toothbrushes made especially for babies and to use them very gently.是say的宾语,也就是一个宾语从句.it is+形容词+to do sth是动词不定式做主语.it是形式主语,动词不定式是真正的主语即to find soft toothbrushes 和to use them very gently.made especially for babies 是过去分词做toothbrushes 的定语.