在not only...but also 搭配中，可以只用but 或只用also, 甚至可以把 but also 都省略掉。例如：I not only heard it but ( also ) saw it. 我不仅听到了，而且看到了。
He was not only compelled to stay at home, ( but ) also forbidden to see his friend.
他不仅被近留在家里，还被禁止去看他的朋友。
She not only finished the task ahead of time, ( but also ) she came to help us.
她不仅提前完成了工作，还帮助我们。
还可以用 but … too / as well 替代but also. 例如：She not only sang well but danced gracefully too ( or as well ) .她不仅歌唱得好，舞也跳得好。
not only...but also 是英语中常见的一对连词, 相当中文的“不仅……而且”。下面将它的用法作一个归纳。
1、not only … but also 和两个部分, 通常必须是对称的并列成分。例如, 连接两个主语、连接两个状语等等。
Not only Mr Lin but also his son joined the Party two years ago.
不仅林先生而且他的儿子在两年前都入了党。(连接两个主语)
I not only play tennis but also practise shooting.
我不仅打网球, 还练习射击。 (连接两个谓语动词)
He plays not only the piano but also the violin.
他不仅弹钢琴, 也拉提琴。 (连接两个宾语)
They speak English not only in class but also in the dormitory.
他们不仅在课堂上说英语, 在宿舍里也说。(连接两个地点状语)
2、 not only 位于句首时, 该句的主语和谓语要部分倒装。
Not only does the sun give us light but also it gives us heat.
太阳不仅给了我们阳光, 也给了我们热量。
Not only did he speak English correctly, but also he speaks it fluently.
他不仅英语说的正确, 还说得流利。
Not only is this young man clever but also he is hardworking.
这个小伙子不仅聪明, 也很勤奋。