This squib presents a substantive set of data that argues against the pro analysis of argument ellipsis (AE) in Korean. The data show a wide range of elided arguments in terms of syntactic category and subcategorial features. This constitutes a non-trivial theoretical burden on the pro analysis since the analysis has to posit categorially different kinds of pro. In this sense, the ellipsis analysis of AE is theoretically superior to the pro analysis in that, category-wise, it need not assume so many types of pro.
2. Categorially Different Kinds of pro