Here's why:
* Grammar is the system of rules that governs how language is used. This includes things like word order, verb conjugation, and the formation of sentences.
* Punctuation is a system of symbols used to clarify meaning and structure in written language. It helps readers understand how words and phrases relate to each other, and it aids in comprehension.
Think of it like this:
* Grammar provides the blueprint for building sentences.
* Punctuation is the set of tools used to make the building process clear and understandable.
Without punctuation, written language would be chaotic and difficult to understand. Punctuation helps readers:
* Identify the start and end of sentences.
* Understand the different types of phrases and clauses.
* Recognize lists and other organizational structures.
* Clarify the meaning of ambiguous sentences.
So, while it's not the same as traditional grammar rules for verbs and nouns, punctuation is essential for communicating effectively in writing. It's a crucial component of the overall system of grammar.