This study begins with the theoretical background of ELT. Then a brief history of English language teaching will be dealt with. It also examines the relevant literature related to the content and various methodologies in using instruction in teaching grammar, teaching methods, and language skills. To do so, I will review theories, concepts, and studies that are relevant to the present investigation. I will provide a theoretical background of teaching grammar with a special focus on focus on forms and other components of language in chapter two and three. Finally, the summary of the study will give a comprehensive and critical idea of this research work.