A jewelry shop is reported in the local newspaper (to have been robbed) last night.
= It is reported in the local newspaper that a jewelry shop was robbed last night.
句型：
主語（人或物）+be +vt-ed + to -v ...
=It +be +vt-ed that 主語（人或物）+ V...
此處的be+vt-ed 中vt-ed常用：said,thought,believed,reported等
to-v：表示將來,所以第二個句子中的V常用將來；
to be doing表示進行,所以第二個句子中的V常用進行；
to have done表示完成,所以第二個句子中的V過去式或完成式.
這里因為有個last night,所以用過去式.
如：
He is said to come
=It is said that he will come.
The boy is thought to be staying home.
=It is thought that the boy is staying home.
He is believed to have come.
It is believed that he has come.