误：This lathe1 can not be used any longer, and that one can't, too.
正：This lathe can not be used any longer, and that one cna't either.
或：This lathe can not be used any longer, neither can that one.
否定句中的也不可以译成too,而须用either，或用neither的倒装句型。
5、你不必为你的军衔和薪金担忧。
误：You won't have to worry about rank and pay.
正：You won't have to worry about rank or pay.
在一定句中用and来连接两个并列成分，表示和，但在否定句中and应改为or, 这个时候否定词对or的前后部分同时加以否定。
6、这类规章规范实在是不健全！
误：How not perfect the rules and regulations are!
正：How imperfect the rules and regulations are!
汉语中的感叹句可用否定式，如：多不光彩呀！多困难呀！而英语中的感叹句不可以用否定式，大家可用反义词或带有否定词缀的词来表示。
7、我觉得这不值得一试。
误：I think this is not worth trying.
正：I don't think this is worth trying.
英语中表臆想、猜测的动词think, believe, fancy2, expect, guess, imagine, suppose等，假如带有否定的宾语从句，宾语从句中的否定词一般提前，用来否定主句的谓语动词。特别是think, 按习惯使用方法，否定词只能置于think前。
8、他来这儿不是为了求得大家的帮忙。
误：He came here not to ask us for help.
正：He did not come here to ask us for help.
否定状语时，英语中的否定词一般不直接置于被否定词汇前，一般置于谓语动词前。只有当两个部分加以对比时，即不是而是时，否定词才可直接置于状语前。如：他来这儿不是为了求得大家的帮忙，而是来给大家提供一些信息。
He came here not to ask us for help, but to give us some information. 即便在这一结构中，英语还是常把否定词置于谓语动词前。
9、他的设计一定还没有完成。
误：He mustn't have completed his design.
正：He can't have completed his design.
对比较有把握的推断，一定句中用must，而否定句中用can't，对过去的推断，在must和can't后接完成形式。
