not much to it的语法

问题描述:

not much to it的语法
<Shawshank Redemption>里面的一段对话:
Andy:Have you ever had an assistant:
*s:No,no,not much to it,really.
能帮我分析一下not much to it的详细语法么?
注意:是语法分析,不是翻译.

not much to it 是个成语.(有和没有)没多大区别
要分析的话,to是介词.it是介词的宾语
really作状语.位置较活跃,句首句尾都可以放,强调的作用