可数名词与不可数名词相应搭配有误。例如：pressure是一种无形的但是有很多种类的事物，所以直接表达压力时不能在后面加复数s，但是要形容它有很多种类时，它就是一个可数出来的事物，所以kind of要加s。
In modern society, people are under various pressures(误)
In modern society, people are under various kinds of pressure. (正)
情态动词的语法使用错误。例如：情态动词后面常常跟动词原形，所以其后的动词要用原型。
They should spent much time. (误)
They should spend much time. (正)
及物动词与不及物动词的搭配误用。例如：发生take place是一个主动的过程，我们不能说什么事是被发生的，所以不能用was taken place 。
The traffic accident was taken place at the junction of two highways. (误)
The traffic accident took place at the junction of two highways. (正)
动宾关系搭配不当。例如：
We must pay attention to it and make solutions to the problem. (误)
We must pay attention and find a solution to the problem. (正)
主谓不一致，人称与动词或数不对应。例如：当主语为第三人称时谓语动词应该用相应的第三人称单数形式才正确
My sister go to the cinema at least once a week. (误)
My sister goes to the cinema at least once a week. (正)
这种主谓不一致的错误在写作中是很常见的问题，考生需要更加细心才行。
There be句型的基本语法错误。例如：There be句型中动词一般用原型，其后的动词不需要变成第三人称单数形式。
There exists some new problems such as being dishonest. (误)
There exist/arise some new problems such as being dishonest. (正)
句子成分残缺不全，语句不通。例如：在复杂从句中常常出现这种错误，省略关系代词或关系副词造成句子成分残缺。
We should read books may be useful to us. (误)
We should read books which may be useful to us. (正)
这是一个定语从句的例句，其中which在从句中做的是主语，所以不能省略，一旦省略就会造成句子成分残缺。
句子成分累赘多余。例如：写作中一不小心中式英文就蹦出来了，这种错误最明显的一点就是让句子成分显得累赘多余。
This test is end, but there is another test is waiting for you. (误)
One test ends, but another is waiting for you. (正)
逐字逐句对应翻译，there is 放在这里就很多余了。
动词时态、语态的搭配前后不一致。例如：同一个句子里，没有特殊情况，前后时态时要保持一致的
I was walking along the road, and there are not so many cars on the street. (误)
I was walking along the road and there were not so many vehicles on the street. (正)
这个例句中前面是was walking ，所以后面也要用相应的过去进行时were。
词类混淆。例如：形容词与副词词类使用混淆情况十分常见。
It is my point that reading must be selectively. (误)
In my opinion, reading must be selective. (正)
这句中，be 后面是形容 reading 的意思，所以要用到一个形容词，而selectively明显是一个副词。
固定搭配错误。例如：
We have little time to read some books which we interest. (误)
We have little time to read some books in which we are interested. (正)
这一句也可以说是定语从句语法错误，be interested in是我们都知道的固定搭配，所以它后面跟宾语一定要有介词in，所以从句引导词要用 in which 。
综上内容看起来都是些简单的问题，但是考试出错率确实是很高哦，究其原因不外乎大家平时都不太会注意到这些细枝末节的知识点，考试稍微粗心大意一点，出错就很正常了。希望大家通过这篇文章的学习能够避免考试中出现同样的错误，不要让一些小瑕疵影响到自己整篇文章的水平，预祝各位考生顺利通过四六级考试!
（实习编辑：刘佰万）
From:https://www.zgghmh.com/CET-4/20000314.asp