Cambodian Students’ Challenges in Learning and Using English Grammar: A Critical Narrative Review

English grammar plays an essential role in both national and international examinations. In Cambodia, however, many students, particularly those in Grade 12, struggle with grammar despite their efforts to master it. Particularly, they often have poor performance in national exams. This article is designed as a critical narrative review and aims to examine the key challenges Cambodian students face in learning and using English grammar and to provide suggestions for improving their performance. Drawing on secondary data, the review identifies several key challenges, including difficulties in using tenses; problems with active and passive voices; difficulties in using prepositions; errors in using articles; and problems with other grammatical items such as subject-verb agreement, parts of speech, the use of clauses, and sentence structures. The article also provides several suggestions to enhance students’ performance in English grammar, emphasising the importance of collaboration among key stakeholders in supporting students to improve their performance in English grammar. The article concludes by outlining implications for future research to explore the challenges Cambodian students face in learning English grammar and the suggestions to address these challenges more effectively.