The study investigated the longitudinal changes in the use of verb patterns (VPs) by 56 Chinese university English majors in oral performance over four years.

• 摘要本研究基于英语专业学生四年的口语跟踪语料，依据复杂度、多样性和准确性三个指标，分析了英语专业学生口语产出中使用英语动词语法型式的变化特点。