The English progressive form emphasizes the on-goingness of process, so it occurs freely on all dynamic and durative situations (Activities and Accomplishments) but seldom occurs on Statives or Achievements, which do not involve process (Carlson, 1977;Smith, 1997;Vendler, 1967).
6 the major function of -zhe in Chinese is to provide a static view of a situation, so it usually occurs with homogeneous situations, which are more likely to be viewed as states, rather than with heterogeneous situations.