1. 主谓一致(noun-verb or subject-verb agreement)
2. 动词时态(verb time sequence)
3. 修饰(modifiers)
4. 平行(parallelism)
5. 代词(pronoun)
6. 比较(comparisons)
7. 惯用词组(idiomatic)
8. 词的选择(choice of word)
9. 句法(sentence construction)
10. 含糊(ambiguity)
11. 累赘(redundancy or wordy)
12. 笨拙(awkwardness)

