“perfective aspect”造句，怎麼用perfective aspect造句

Negative perfective aspect marker de in the Yangzhou dialect;

The aspect of verb in Russian (imperfective aspect and perfective aspect) is one of the difficulties for Chinese students.

Chapter 2 discusses three types of the perfective aspect.

Through the research, the majority of scholars th ought that "(?)" had the sense of progressive aspect and perfective aspect.