1. 中文:他既不说英语也不说法语。

(误)He neither speaks English nor French.

(正)He speaks neither English nor French.

either...or, not only...but also 等对等相关连接词所连接的部份应是相同词性或起相同作用。

2. 中文:由于今天感觉不适,我决定待在家里。

(误)For I did not feel well today, decided to stay at home.

(正)I decided to stay at home, for I did not feel well today.

对等连接词for连接两个对等的子句时不可放在句首,只可放在句中,for之前须加逗点。

3. 中文:不是你错了就是我错了。

(误)Either you or I are wrong.

(正)Either you or I am wrong.

在含有either...or的句子中,述语动词的数由较近的主语决定。

4. 中文:虽然他很富有,但他并不快乐。

(误)Although he is very rich, but he is not happy.

(正)Although he is very rich, he is not happy.

though或although本身就具有虽然...但是的意思,不可再和but连用。

5. 中文:我从来没有去过伦敦和巴黎。

(误)I have never been to London and Paris.

(正)I have never been to London or Paris.

在否定句中,对等连接词一般不用and,而用or。

6. 中文:他向我道歉我才跟他说话。

(误)I shall speak to him until he apologizes.

(正)I shan't speak to him until he apologizes.

not...until表示到...时候才,在此句中speak的动作要等到他道歉时才发生。

7. 中文:因??我想学英语,所以我买了一本字典。

(误)Because I wanted to learn English, so I bought a dictionary.

(正)Because I wanted to learn English, I bought a dictionary.

because本身就具有因??...所以的意思,不可再和so连用。