倒装句：so/neither的倒装

eg: He can swim. So can I.
　　She didn't go to class. Neither did I.

结构：

　　so/neither+be+ 主语
　　so/neither+助动词+ 主语
　　so/neither+情态动词+ 主语

助动词：

     一般现在时: do, does/am, is, are
　　现在进行时: am, is, are
　　一般过去时: did
　　现在完成时: have, has
　　一般将来时: will, shall
　　过去进行时: was, were
　　过去完成时: had
　　过去将来时: would