Why you need a grammar?

Answer 1

You need grammar for many reasons. For example, this questions has many grammatical mistakes.

*"You" is a second person pronoun. Though in common, everyday English the reader understands what you wrote, the question is grammatically incorrect. By saying "you," you (the writer of the question) are referring to me (the answerer of the question). Because of this literal interpretation, your question is literally asking me (the answerer) why I need grammar. Therefore, my answer should be a very personal answer about my need for grammar. The vagueness of your question leaves it open for me to go on and on about my love of grammar, my desperate need for it, and every other way I need grammar.

*The lack of a "do" in this question: The question could read: "Why do you need grammar?" (This is ignoring the second person pronoun "you," which I droned on about above.) The way this question is typed does not seem natural and is not correct without the helping verb "do." My recommendation: read the question aloud before posting it.

*The use of the article "a" is not necessary. By using the article, you are implying multiple things. You (again, the proper use of the word "you," as I am referring to you, the writer of this question) are stating that there are multiple types of grammars. "A" grammar implies that there are many forms of "grammar." (Though there are, as there are many languages with differing grammar rules, I feel that it is safe to assume that this meaning was not intended.) You are also being very vague with the use of "a." "A/an" are the nonspecific articles. "The" is a specific article. I could then answer about Spanish or American Sign Language grammar, not knowing which specific grammar you are discussing. My answer would still be correct, but it may not be the answer you were looking for, especially if you were looking for English-language specific examples.

My advice: keep up with your grammar classes. I understand that this question was most likely typed in a hurry, and some of the mistakes are typos. My answer is meant to be sarcastic and a bit humorous. I do not mean to put you down by any means, but rather use the question as a prime example for the need of grammar. Proper grammar is incredibly important for communication. It helps alleviate confusion and also can help indicate the specific tone of a conversation, text, etc.

To put my rant back on myself (and hopefully avoid hurting your feelings), I would like to point out that my answer has many grammatical mistakes as well. I was typing this quickly, so a lack of revision is partly the reason. Another reason is the fact that I was lazy. For example, the use of linking verbs (is, are, was, were, be, being, been, etc), even if not paired with an action verb, is considered passive voice. Passive voice, though technically grammatically correct on paper, counts as lazy and informal grammar. I would make a habit of avoiding using it, though in quick circumstances it helps out. (There is another grammatical mistake: a sentence should not end in a preposition.) There are many other grammatical mistakes in this answer, and I challenge you as an exercise to find them all.

Hope this helps! Good luck with your grammar classes :)