NIM:3213063106 Nagzizah, Aminatul. 2010. Grammatical Errors in The Report of the Eleventh Grade of Science 3 Class at MAN Tulungagung 2. Thesis, English Education Program, Islamic Education Department, State College for Islamic Studies of Tulungagung. Advisor : Nanik Sri Rahayu, M. Pd. Key words : grammatical errors, report writing As a foreign language in Indonesia, English is mostly us…