連接詞 conjunctions

These conjunctions are called correlative conjunctions. They always travel in pairs, joining various sentence elements that should be treated as grammatically equal. (called coordination)

1. either...or (不是...就是)
例: She is coming either today or tomorrow. 她不是今天就是明天來。

2. neither...nor (既不...也不)
例: He neither drinks nor smokes. 他既不喝酒也不抽煙。


not only...but (不僅...而且)
She not only wrote the text but also selected the illustrations. 她不僅寫了正文部份，而且還挑選了插圖。

both...and (既...且...; ...和...都)
The prospects both excited and worried me.. 這前景既使我激動又令我憂慮。

Basically, both (not only...but) and (both...and) are of same meanings. We can use not only (not only...but) but also (both...and) to join two sentences in a coordination pattern.

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