Abstract
This article explores the issue of the psychological reality of null expletives, i.e., the silent counterparts of the so-called dummy subjects such as English it and there. Following Jackendoff’s (1997; 2002) notion of `defective’ lexical item, I define null expletives as extremely `defective’ words with syntactic properties but no semantic or phonological content. By comparing native speakers of pro-drop languages and those of topic-drop languages in terms of their grammatical judgement of and productive use of English, I argue that null expletives are very likely psychologically real to speakers of pro-drop languages but not to those of topic-drop languages. This conclusion is based on observations made in previous second language (L2) studies and the analysis of data obtained from a large corpus of nonnative English. The question of the unaccusative-unergative distinction in L2 grammar and the linguistic characterization of so-called free subject-verb inversion in pro-drop languages are also discussed in relation to the issue of the psychological reality of null expletives.
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