A good writer knows the importance of proper grammar. Proper grammar can make or break an article, blog post, essay or any homework assignment. Common grammar errors may not seem important, but they can change the meaning of any writing. Proper grammar can help people succeed in the job market today. Proper grammar is essential in work fields like science, teaching and medicine. Freelance writers need to have excellent grammar capabilities. If a freelance writer fails in grammar their income may suffer. A journalist needs good grammar to help form sentences in a coherent manor. It is always important to spell check any work before submitting, but many people fail to check for grammar errors. A free online grammar checker has proved to be beneficial to amateur and professional writers alike. A good grammar checker website will check spelling and grammar both. Results are usually instant and checks for English grammar.