On Tue, 29 Jan 2019 at 11:36, Stewart Fraser <[log in to unmask]> wrote: > > What do you mean by expletive subjects and thematic subjects ? An expletive is a word that has no semantic meaning, and only serves a syntactic role. The most classic example I know of is the "It" in "It's raining." -- what is raining? Nothing. Raining just happens. The "It" has no referent, it's just there to satisfy a syntactic requirement of English grammar. > Also I am a bit hazy about the term pro-drop. https://en.wikipedia.org/wiki/Pro-drop_language Basically, it means that the language allows you to leave out ("drop") pronouns (or, equivalently, noun phrases) when they can be inferred from context. -l.