e.g. For those under 26， there were 80% students study for career.
There be句型属于双谓语错句高发句型，因为句中的be动词已经是谓语，而句子后面的动词通常是定语从句中的成分，故不能作为主句中的谓语。例句中同时出现了 “were”和“study”，根据上面的分析，were应该是谓语，而study for career应该是定语从句，因此，例句应修正改成：
For those under 26， there were 80% students who studied for career. 或者For those under 26， there were 80% students studying for career.
又如：Causes for this phenomenon are comprehensive but the major reasons contribute to this problem can be identified from three perspectives.应改成：
Causes for this phenomenon are comprehensive but the major reasons contributing/which contribute to this problem can be identified from three perspectives.
e.g. The most popular kind of transport was by road.
句中主语是the most popular kind of transport，谓语动词(系动词)是was， 而by road按照语法应该是方式状语，此句缺乏表语。应改成：
The most popular kind of transport was road.
又如：Many factories in order to get more profits， which made waste water and waste gas.
去除目的状语“in order to get more profits”和非限制性定语从句“which made waste water and waste gas”， 剩下的是many factories， 不能作为一个句子。根据此句想表达的意思，应改为：
Many factories in order to get more profits made waste water and waste gas.
e.g. We are impossible to make any progress without correcting the mistakes.
此句的主干结构是：we are impossible“我们是不可能”，表意不对。这种表达在英语中对应的句型是：It is…for…to…， 所以应该改成：
It is impossible for us to make any progress without correcting the mistakes.
类似的错误例句还有：People are very convenient to get information on the Internet. His profession is a teacher.
e.g. Another equally vital point to be considered is that building them may costs much money and energy.
e.g. Another point to be discussed is that more time spending on computers is harmful to children’s mental health.
Another point to be discussed is that spending more time on computers is harmful to children’s mental health.
e.g. As far as I am concerned， people should take exercise and relax themselves on a weekly basis. Because it offers great opportunities to release their stress.
e.g. One possible solution is using the new energy to instead of the traditional energy.
Instead of是介词，而这里构成to do(不定式)，只能用动词。因此，可改为：
One possible solution is using the new energy to replace the traditional energy.
e.g. Nowadays， some students study many subjects in university， which leads to that they suffer great mental pressure.
Lead to中to是介词，后面不能直接加句子，因此可在leads to后加一名词，构成同位语从句：
Nowadays， some students study many subjects in university， which leads to the fact that they suffer great mental pressure. 或Nowadays， some students study many subjects in university， which makes them suffer great mental pressure.
e.g. The reason why I assert it is necessary for government to provide better education and health care for rural areas because it can ensure all citizens to have access to them.
“why…rural areas”在句中作the reason的定语，固定句式“the reason why…is that…”why引导的定语从句和that引导的表语从句连用，气势磅礴，这就是所谓的句型。
e.g. In this essay， I will discuss what those， who are two kinds of people in this topic， are how to think and how to choose. 实再迂回婉转，不知所云。