Learning grammar based on oxford grammar dictionary

At a high level, the definition of grammar is a system of rules that allow us to structure sentences. It includes several aspects of the English language, like: - Parts of speech (verbs, adjectives, nouns, adverbs, prepositions, conjunctions, modifiers, etc.) Clauses (e.g. independent, dependent, compound) Punctuation (like commas, semicolons, and periods when applied to usage) Mechanics of language (like word order, semantics, and sentence structure)