请问not only...but also...的用法：

题目

请问not only...but also...的用法：
下面的两个句子哪个对?还是两个都对?(要有把握才能答哦!)
1、You must not only wash the dishes but also sweep the floor.
2、You not only must wash the dishes but also sweep the floor.
这个猜测对吗：not only but also的主句若为同一动词第二个就可省掉,若为两个不同的动词,则不能省掉：如：
I not only speak English very carefullu,but very clearly as well.
You must not only wash the dishes but sweep the floor as well.
not only but also 是否和not only but as well意思和用法是一样的?

答案

1.第一句正确.
2.是省略动语,而不是also,not only.but also 不动词短语,固定搭配．
3．Ont only...but also不但．．．而且．．．．not only...but as well,不仅．．．但这样更好．不一样．