Grammatical Reference Links

Grammatical Reference Links

Material from the Purdue University Online Writing Lab (OWL)

Adjectives and adverbs A or An?: Adjective or Adverb? Adjectives with Countable and Uncountable Nouns Using Articles (A/An/The)

Nouns

• A Little Help with Capitals
• Count and NonCount Nouns (with Plurals, Articles, and Quantity Words)
• Count and NonCount Nouns (with Articles and Adjectives)
• Writing Numbers: with exercise and answer key

Prepositions

• Prepositions of Direction: To, On(to), In(to)
• Prepositions of Location: At, In
• Prepositions of Time, of Place, and to Introduce Objects
• Spatial Relationships of Prepositions

Pronouns

• Using Pronouns Clearly
• Pronoun Case

Sentence structure

• Appositives
• Dangling Modifiers
• Independent and Dependent Clauses (definitions)
• Making Subject and Verbs Agree
• Parallel Structure
• Run-ons, Comma splices, and Fused Sentences
• Sentence Fragments
• Sentence Punctuation Patterns
• Some Strategies for Improving Sentence Clarity

Verbs

• Active/Passive Verbs
• Irregular Verbs
• Sequence of Tenses
• Tense Consistency
• Two-Part (Phrasal) Verbs- (Idioms)
• Verb Tenses
• Verbs with Helpers (Perfectives and Auxilliaries)
• Verbals: Gerunds, Participles, and Infinitives
• Voice and Mood

Apostrophes and Quotation Marks

• Apostrophes
• Quotation Marks

Commas

• Commas after Introductions
• Commas vs. Semicolons in Compound Sentences
• Commas with Essential and Non-essential Elements
• Proofreading for Commas
• Using Commas

Hyphens

• Using Hyphens

Other punctuation

• Brief Overview of Punctuation: Semicolons, Colons, Parentheses, Dash, Quotation Marks, and Italics

Sentence Punctuation

• Sentence Punctuation Patterns
• Run-ons, Comma splices, and Fused Sentences

Spelling

• Spelling: Sound-Alike Words
• Spelling: Accept/Except and Affect/Effect
• Spelling: i/e rules
• Spelling: Noun Plurals
• Spelling: Suffixes–-ible vs. —able