Rofi’e 2016. Grammatical Error on Writing Skill of the Students at Eleventh Grade ofMA Al-Falah Sumber Gayam Kadur Pamekasan. Undergraduate, Thesis, English Teaching Learning Program (PBI) of Tarbiyah Departement, The State of Islamic College (STAIN) Pamekasan. Advisor: Hj. S. Sumihatul Ummah MS. M.Pd. Keywords: Grammatical Error, Writing Skill. English as international language which c…