Sang-soo Park. 2000. Causative Alternations in English. Studies in Modern Grammar 21, 49-71. In order to explicate the lexical properties of causative alternation verbs, pure unaccusative verbs and unergative verbs associated with argument structures simultaneously and to examine their differences in syntactic structures in principle, we propose the revised semantic feature complexes specified as [±Externally caused eventuality] and [±Internally caused eventuality]. The cause that pure unaccusative verbs select a single-internal argument in the underlying structure can be shown if we consider the historical evidence that unaccusative verbs of present-day English originate from the impersonal verbs of Old English that were used without subject.

• 박상수 | Sang Soo Park