Revelle Humanities Grammar Handbook
6 Sentence fragments
7 Run-on sentences
8 Verb agreement
13 Passive voice
15 ESL
17 Misplaced modifiers
18 Pronoun reference
20a Comparisons
21 Parallel construction
23 Commas
23d Sexist language
25/6 Semicolons & colons
29 Ellipsis
31 Brackets
35 Apostrophes
36 Abbreviations
37 Underlining
39 Numbers
41b Slang
41e Jargon
41f Pretentious language
42c Idioms
42e Clichés
43a Fluff

The Humanities Grammar Handbook is meant as a brief reference tool to help you with common grammatical errors. Section numbers refer to Dornan and Dawe, The Brief English Handbook 6th Edition (New York: Harper Collins, 2001), where you will find these and other principles of good writing spelled out at greater length.

For more general advice on writing your paper, see the Writing Workshop. For a sample fictional 5-paragraph essay by an invented student which is marked based on what needs improving, see the Online Tutor.