1. Sentence fragment (frag): any group of words that do not constitute a complete thought

2. Comma splice (cs): two sentences joined by a comma but lacking a conjunction

3. Run-on sentence (run-on): two sentences fused together without any punctuation or conjunction

4. Garbled sentence (awk, gs): any sentence that for any reason does not make sense

5. Faulty subject-verb agreement (s-v): a sentence in which the subject and the verb do not agree in number or person

1. Misused verb form error (vb)                             

8. Pronoun-antecedent agreement error (agr)

2. Nonparallel element (non-11)

9. Error in capitalization

3. Misused or omitted comma

10. Error in pronoun case or reference (upr)

4. Misused or omitted semicolon

11. Inappropriate word choice or sentence structure

5. Dangling or misplaced modifier (mm)

12. Misspelled word (sp)

6. Misuse of adjective or adverb

13. Omission of word ending

7. Misused or omitted apostrophe