not only放在句首时，要部分倒装（借助助动词）。如：Not only do we come to school on time every day ,but also we must work hard.部分倒装是指将该句中谓语的一部分如助动词或情态动词倒装至主语之前。
not only造句
1、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。
2、Drinking of tea not only can make myself happy but also can improve my memory.
喝茶不但让我感觉快乐，而且还能提高记忆力。
3、Reading not only can make myself happy but also can improve my academic performance.
读书不但让我感觉快乐，还能帮助我提高成绩。
4、Things here are not only inexpensive but also of good quality.
这里的东西不仅便宜而且质量好。
5、I like not only apples but also bananas.
我不但喜欢苹果而且喜欢香蕉。