What is grammar?

The whole system and structure of a language or of languages in general, usually taken as consisting of syntax and morphology (including inflections) and sometimes also phonology and semantics.

The structure of a language is its grammar. Grammar is occasionally referred to be a language's "rules," yet no language actually has rules. If we say "rules," we imply that someone first developed the rules before speaking the language, much like a new game. But, this is not how languages began. Languages began with sounds that were later transformed into words, phrases, and sentences. No widely used language has a set structure. Every language evolves throughout time. What we refer to as "grammar" is merely an expression of a language at a specific period.

Does learning a language require us to study grammar? "No" is the brevity of the response. There are a ton of people in the world who speak their native tongue without having learned its grammar. Before they even understand the word "grammar," children begin to communicate. Yet, the lengthy answer is "yes, grammar can enable you to learn a language more quickly and more effectively" if you are serious about studying a foreign tongue. It's crucial to think about grammar as a buddy who can support you. Without asking a tutor or consulting a book, you can grasp a lot of things on your own when you understand the grammar (or system) of a language.