This study aims to determine the implementation of Nahwu in improving Englishgrammar skills. This research is a qualitative study with the type of ClassroomAction Research (CAR) with a contrastive analysis method conducted at SMKPelita Al-Quran Wonsobo, with samples taken from 1 class, namely eleventh gradeAKL. This research is conducted following the Kurt Lewin model with a spiralprocess which includes:

1 1 10 This study aims to determine the implementation of Nahwu in improving Englishgrammar skills. This research is a qualitative study with the type of ClassroomAction Research (CAR) with a contrastive analysis method conducted at SMKPelita Al-Quran Wonsobo, with samples taken from 1 class, namely eleventh gradeAKL. This research is conducted following the Kurt Lewin model with a spiralprocess which includes: planning, implementation, observation, and reflection. Theresearch is conducted in two cycles. The instruments used are tests, observation,and documentation. The results show that: Arabic Grammar (Nahwu) effectivelyimproves the grammar skills of eleventh grade AKL students at SMK Pelita AlQuranWonosobointheacademicyear2023/2024.Thisisevidencedbystudents'progressinunderstandingontheobservationsheetateachmeetingofeachcycleandalsoreinforcedbystudents'scoresaftertheimplementationofaction.Studentscoresincreasefromthepre-testtothesecondpost-test.Inthepretest,13.63%ofstudentspass the KKM. While in post-test I 45.45% and post-test 2, 81.81% ofstudents pass the Minimum Passing Grade.Keywords: English, grammar, method, nahwu Dina Nuhyatul Muna Pengarang mixed material 20240705 Wonosobo Universitas Sains Al-Qur'an 2024 52.png.png