not only……but also……有就近原则。当not only……but also……连接两个主语时，谓语动词采取就近一致原则，即谓语动词要和与其最近的主语保持人称和数的一致
1、 not only... but also可以连接两个主语、宾语、谓语动词、表语或状语等。它连接的两个成分往往是对称的。
Not only Jim but also his boss is going to attend the meeting. （连接两个主语，注意谓语动词采取就近原则）
Timmy likes eating not only chicken but also fish.（连接两个宾语）
He not only read the book， but also remembered what he had read.（连接谓语动词）
Allen is not only an artist but also a great basketball player.（连接两个表语）
2、 not only... but also也可以写作not only... well
He not only read the book， but remembered what he had read as well.
3、 not only... but also...里but和also可以分开
Not only will you enjoy the art works but you can also exchange ideas with artists.（注意，不把also放在can前面）
4、 当not only放在句子最开头时，not only引导的句子倒装，but also的句子不倒装，正常语序。
Not only do the nurses want a pay increase， but also they want reduced hours.
有。
not only … but also …”是一个并列连词词组，其意思等于“both … and …”，但侧重点放在“but also”上，也就是遵循就近原则。
另外该词组使用时须遵守一定的规则，如要求对称，倒装及主谓一致等。
例如，In production， we demand not only quantity but also quality.
我们的产品不但要求数量多，而且要求质量高。
Not only Jim but also his wife saw her.不但吉姆而且他妻子也见到了。
Not only she but also I am wrong.
不仅是她连我都错了。
