Tom can speak French. So can Jack.

　　If you won't go, neither will I.

　　典型例题

　　---Do you know Jim quarrelled with his brother?

　　---I don't know, _____.

　　A. nor don't I care　　B. nor do I care　　C. I don't care neither　　D. I don't care also

　　答案：B. nor为增补意思"也不关心"，因此句子应倒装。A错在用 don't 再次否定， C neither 用法不对且缺乏连词。 D缺乏连词。

　　注意： 当so引出的句子用以对上文内容加以证实或肯定时，不可用倒装结构。意为"的确如此"。

　　Tom asked me to go to play football and so I did.

　　---It's raining hard.　　　---So it is.