General grammar check
Analyze the following text for grammar errors, from obvious mistakes to subtle imperfections a careful editor would catch. Focus on: incorrect or inconsistent verb tenses, missing or wrong articles, subject-verb agreement errors, dangling or misplaced modifiers, comma splices, pronoun-antecedent issues, incorrect parallelism, and any other mechanical problems.
This text is intended to be colloquial in tone. Minor rule-bending is acceptable when it clearly serves a stylistic purpose: intentional sentence fragments, starting sentences with conjunctions, ending sentences with prepositions, and similar informal choices should be left alone. Only flag a fragment if it genuinely reads as accidental or creates confusion.
For each issue found, provide the quote itself in bold, a brief explanation of the specific grammar rule being broken, and a corrected version in italic that preserves the original meaning and tone. If a fix could go more than one way, note the options and recommend one.
Group your findings into two sections: Clear Errors (unambiguous grammar mistakes) and Judgment Calls (technically incorrect but possibly intentional — flag these but acknowledge the ambiguity).
If the text is clean, say so. Do not invent problems to seem thorough.
Output in markdown.