This study delves into the acquisition of Korean negation by Romanian native speakers, exploring the challenges encountered and giving insight into the language learning process. The research investigates the differences in negation systems between Korean and Romanian, highlighting the complexities faced by Romanian learners as they navigate the unique structures of Korean negation. Through a contrastive analysis, error analysis, and corpus linguistics approach, the study uncovers patterns of misuse, semantic nuances, and grammatical restrictions that influence the acquisition of Korean negation by Romanian speakers. The findings shed light on the cognitive processes, linguistic factors, and strategies employed by learners to overcome challenges in acquiring Korean negation. By examining the linguistic features of both languages and analyzing the errors and difficulties faced by Romanian learners, this study contributes to a deeper understanding of cross-linguistic language acquisition. The research underscores the importance of further investigations to support the effective acquisition of Korean negation by Romanian speakers.