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)
