Language is a means of communication that is used to transfer information, ideas, and feelings from one person to another. It is used to communicate both in written and spoken form. Considering the importance of the language, our government has drawn up English as a foreign language that should be mastered by the students. In Indonesia, English teaching aims at mastering four basic skills of language, which include listening, speaking, reading, and writing skills. Nowadays, based on our newest curriculum that is KTSP, the students are expected to master those four skills in order to be able to use English communicatively. The aim of KTSP (Kurikulum Tingkat Satuan Pendidikan) will not be successfully achieved if the language teaching does not consider the language components such as grammatical structure, vocabulary, spelling, and pronunciation. Therefore, grammar needs to be mastered by the students since it is the basic rule of language.