Mastering Grammar
Punctuation
Comma Usage
Essential vs. Non-essential elements
Independent clauses with conjunctions
Long dependent clauses
Adjectives modifying the same noun
Semicolons
Between independent clauses without conjunctions
In complex lists
Quotation Marks
Placement of punctuation inside or outside quotes
Dashes
Em dash for interruptions/emphasis
En dash for ranges (e.g., dates)
Hyphens in compound modifiers
Modifiers
Misplaced Modifiers
Correct placement for clarity
Dangling Modifiers
Clear referents
Noun and Pronoun Grammar
Capitalization
Proper nouns and titles
Subject-Verb Agreement
Singular vs. plural subjects
Pronoun Agreement
Pronoun matches antecedent in number and clarity
Possessives
Apostrophes for singular/plural nouns
Verbs and Adverbs
Active vs. Passive Voice
Clarity and emphasis
Verb Moods
Indicative, imperative, interrogative, subjunctive, conditional
Tenses
Past perfect, future perfect, etc.
Adverbs
Placement and overuse