* Sentence structure: Correctly forming sentences with subjects, verbs, and objects, using appropriate punctuation to indicate relationships between clauses and phrases.
* Word choice (diction): Selecting the most appropriate words to convey meaning accurately and effectively, considering factors like formality, tone, and audience.
* Grammar rules: Adhering to the rules of grammar regarding verb tense, subject-verb agreement, pronoun usage, and other grammatical structures.
* Mechanics: Correctly using punctuation (commas, periods, semicolons, etc.), capitalization, spelling, and formatting conventions.
* Style and clarity: Writing in a style that is clear, concise, and engaging for the intended audience, while maintaining grammatical accuracy.
Essentially, "writing in grammar" means producing written text that is grammatically correct and effectively communicates the intended message. It's not just about avoiding errors; it's about actively using grammatical structures to create meaning and impact.