1.动词原形做主，宾，表，宾补等名词性的成分。

例如：Swim is my favorite sport. My goal is pass the exam.

改正为：Swimming is my favorite sport. My goal is to pass the exam(注意goal, purpose, dream 等词表示尚未实现的动作，要用不定式)。

2.There be和has用法混淆。

例如：There have a lot of trees in the park.

改正为：There are a lot of trees in the park. 或者The park has a lot of trees in it.

3.可数名词单独使用。

例如：Cellphone is useful. I like playing computer game.

可数名词单数不要单独使用哦，可以改为复数指类别，如：

Cellphones are useful. I like playing computer games. 也可以在单数可数名词前加上限定词如this，that;代词所有格如 his, her; 或者加上冠词the, a, an.

4.主谓不一致。

例如：She don't know what to do.

动词的三单形式最是容易被忽略，改正为：She doesn't know what to do.

5.比较级乱用。

例如：Biking is more healthier than driving a car. It is more easy to search information online.

不要笑，每三个学生就有一个常犯这样的错误。

改为：Biking is healthier than driving a car. It is easier to search information online.

6.一个句子里有多个动词。

例如：I want go to bed. I like dance and sing.

注意，一个句子里只能有一个谓语动词。所以要把多余的那个换成非谓语的形态哟～

I want to go to bed. I like dancing and singing.