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Grammar

Articles	Verbs
Editing for Articles (no exercises) (pdf) Editing for Articles (exercises and answers) (pdf) Articles with Proper Nouns (pdf)	Subject-Verb Agreement (exercises and answers) (pdf) Proofreading for Subject-Verb Agreement (exercises and answers) (pdf) Verbals-Gerunds and Infinitives (pdf) Sentence Structure: Double Verb Error (pdf)
Punctuation	Sentence Structure
Commas (no exercises) (pdf) Commas (exercises and answers) (pdf) Semicolons (exercises and answers) (pdf) Colons (pdf) Punctuating and Formatting Dialogue (pdf)	Connectors: Usage and Meaning (pdf) Ways to Connect Clauses in Sentences (pdf) Punctuation for Connecting Words (exercises and answers) (pdf) Parallelism (exercises and answers) (pdf)
Prepositions	Self Editing
Dictionary Help for Prepositions (exercises and answers) (pdf)	Steps for Self-Editing (pdf)
Style	External Links
Avoiding Wordiness (exercises and answers) (pdf) Word Forms (pdf)	Grammar Bytes (grammar terms, interactive exercises, handouts) Online Writing Lab (Purdue University) Guide to Grammar and Writing (Capital Community College Foundation) Paradigm Online Writing Assistant