This paper compares and contrasts language forms used in the English curriculum recently developed by the Korean Ministry of Education with those used in the five widely used ELT textbooks in the following three ways: First, the paper briefly reviews the research literature of grammar syllabus design and looks into the issues of grammar selection and grading. Second, builds a small-scale database of grammar used in five major commercially available ELT textbooks. The selection was expressed in terms of the order of first time use and frequency. Third, the paper compares this newly built grammar database with the grammar syllabus of the English curriculum that is being recommended for textbook writing for grades 3 through 10 in Korean schools. It subsequently discusses a quantitative analysis of the two grammar syllabuses. Finally, the paper makes several suggestions for improving the need for revising the national English curriculum, accommodating the language forms used in ELT textbooks worldwide.