In the literature, it has been observed that the RVC cannot be combined with the progressive aspect ‘(zhèng) zài…(ne)’ or the continuative aspect ‘zhe’, both are of the imperfective aspect. This fact has been used as a piece of powerful evidence arguing for the claim that the RVC is an Achievement that describes a punctual action, instead of an Accomplishment consisting of a durative process and an endpoint as well. For instance:
*Zhāng Sān zhèng zài xiěwán yī fēngxìn.
(Int: * Zhangsan is finishing writing a letter.)
*Tāmen zài xiūhǎo zhe nà zuò fángzi ne
(Int: * They are finishing building that house.)
 Loar, J. K. (2011). Chinese syntactic grammar: functional and conceptual principles. New York: Peter Lang.