The Word Grammar means different things to different people. To the ordinary citizen, it connotes to correctness or incorrectness of the language that he or she speaks. To a school student, it means an analytical and terminological study of sentences. Knowledge of grammar helps the student in the correction of mistakes and improvement of written work. A person can’t learn a  foreign language accurately only through a  process of  unconscious  assimilation. Grammar  is  a  sure  ground of reference  when linguistic  habits  fail  us.  So grammar is indispensable for the student. In this paper my aim is to bring the attention of the language teacher as well as the learner about the real utility of grammar in teaching English language. Hence, let’s discuss some basic things about English grammar and composition.