This study analyzes English verb–particle constructions (VPC) in a learner and a native corpus of argumentative essays, focusing on two important factors: structural patterns of VPCs and preference for one-word verbs (e. g., delay vs. put off). The results showed that while every structural type of VPC was significantly underused by L2 learners, greater underuse was observed with discontinuous transitive VPCs (e. g., bring it back). In addition, the frequency of the most underused VPCs in the learner corpus was significantly lower than that of their one-word synonyms, indicating the learners’ strong preference for one-word verbs. Identifying these specific areas of difficulty when learning VPCs, the author explores how contrastive linguistic analyses and corpus-based quantitative approaches can collaboratively contribute to the investigation of complex interlanguage systems.