This study explores the acquisition and use of impersonal passive constructions by Croatian students studying English language and literature. Impersonal passive voice, which is often used in formal and academic writing, poses challenges for non-native speakers due to its complexity and infrequent use. The aim of this research is to assess how students understand and apply this grammatical structure, with a focus on the accuracy and frequency of its use when rephrasing sentences. A survey was conducted among 42 Croatian university students, who were asked to rephrase sentences so that their meaning stays the same. The findings reveal a strong preference for passive and active voice constructions over impersonal passive forms, indicating that even advanced learners tend to avoid more complex grammatical structures. While participants demonstrated the proficiency to produce grammatically correct sentences in the impersonal passive voice, many exhibited unnecessary tense shifts, leading to subtle changes in meaning. The findings of this study suggest a need for more focused instruction on impersonal passive constructions in advanced English curricula to improve proficiency in academic writing.