Twenty most common writing errors

Taken from A. Lunsford, R. Connors, and F. E. Horowitz, Easy Writer: A Pocket Guide. Boston and New York: Bedford/St. Martin's, 1999; LBHB approximately equivalent sections.

	Description of error	Easy Writer section	LBHB section
1	Missing comma after an introductory element	19a	28b
2	Vague pronoun reference	6c	19
3	Missing comma in a compound sentence	19b	28a
4	Wrong word	13	38b-1
5	Missing comma(s) with a nonrestrictive element	19c	28c
6	Wrong or missing verb ending	2, 3	15a
7	Wrong or missing preposition	17	12c, 14f, 38b
8	Comma splice	7	18a-b
9	Missing or misplaced possessive apostrophe	22a	30
10	Unnecessary shift in tense	12a	7f
11	Unnecessary shift in pronoun	12c	20
12	Sentence fragment	8	17
13	Wrong tense or verb form	2, 12a, 16	14g-h
14	Lack of agreement between subject and verb	3	15a
15	Missing comma in a series	19d	28f
16	Lack of agreement between pronoun and antecedent	3	15b
17	Unnecessary comma(s) with a restrictive element	19i	28c
18	Fused sentence	7	18c
19	Misplaced or dangling modifier	5a, 5c	21a-h
20	Its/It's confusion	22b	30c