昨天剛好被學生問到，然後今天一早4.50起床，一直摸，出去買早餐，走了兩家都沒開，最後走到遙遠的地方總算喝到普通的豆漿。吃完早回來還是好早，因為要上課，所以不能倒頭再睡回籠覺，所以寫一下基本用法規則好了。
1 not only … but also … 不僅…也…是個平行結構，所以兩個詞後面的詞性要相同
I go swimming not only in summer, but also in winter. (名詞)
我不只在夏天游泳，也在冬天游泳。
Summer in Taiwan is not only hot, but also humid. (形容詞)
台灣的夏天不僅熱又悶。
Not only Sue works hard, but also Amber. (名詞) (可以放主詞前，後面的主詞的動詞因為相同可以省略)
不只是蘇努力工作，安栢也是。
2 放在動詞前面的時候，雖然有 not 這個否定詞，但是不加助動詞 do, did 等
He not only plays basketball, but also goes bowling. (動詞)
他不只打籃球，也打保齡球。
They not only saw a movie, but also had dinner. (動詞)
他們不僅看電影也吃晚餐。
3 可以把 not only … but also … 放到句首倒裝來強調。句型是把 not only 放到句首，再加上助動詞，再加上主詞。Not only + auxiliary verb + Subject 。這個句型 but 可以省略。
Not only has he been to Europe, but he has also been to Africa.
= Not only has he been to Europe; he has also been to Africa.
他不僅去過歐洲，他也去過非洲。
Not only did she waste a lot of time, but she also spent a lot of money on mobile games.
她不僅浪費了很多時間，她也花了很多錢在手機遊戲上。
4 通常 not only … but also … 用在寫作上，非正式口語比較不常見。比方說上面那一個例子，口語就會很簡單的說 She didn’t only waste a lot of time. She spent a lot of money too. 或者 She wasted a lot of time and spent a lot of money on mobile games.
突然間就該出門上課了，假如需要更多例子或倒裝看補懂怎麼改的再留言，下課回來再補充:)
Jessie's 潔西家 
老師你好 想請問also的位子，Not only has he been to Europe, but he has also been to Africa.這一句後半段改成but also he has been to Africa.請問這2句在意思上有差別嗎? 哪一句比較好? 謝謝
兩個意思都一樣，沒有什麼差別，我個人覺得
Not only are coral reefs beautiful,but they also play a very important part in Earth’s marine ecosystems.
這樣這個句型就怪怪的
are coral reefs beautiful是怎麼來的
這篇文章的第三的倒裝
原本的句子
Coral reefs are not only beautiful, but they also play a very important part in Earth’s marine ecosystems.
3 可以把 not only … but also … 放到句首倒裝來強調。句型是把 not only 放到句首，再加上助動詞，再加上主詞。
所以就變成
Not only are coral reefs beautiful, but they also play a very important part in Earth’s marine ecosystems.