| 类别 | 解释 | 例句 |
| 省略错误 | 句子中缺少必要成分 | He swimming happily in the pool. |
| 添加错误 | 句子中出现不必要或不正确的词语 | I was started to cry because I cut my finger. |
| 构成错误 | 使用结构或词素的错误形式 | The girl eated the apple. |
| 排序错误 | 语序不当 | Tell me what did you buy. |
| 排序错误 | 要素选择错误 | The government pays muchattention on pollution problems. |