Subjects and Verbs
Verb Forms
Subject-Verb Agreement
Sentence Fragments
Run-on Sentences
Pronoun-Antecedent Agreement
Commas
Apostrophes
Quotation Marks
Hyphens and Semicolons
Homonyms
Capital Letters
Wordiness, Slang, and Clichés
Misplaced and Dangling Modifiers
Parallelism