We start this page with the hypothesis that the lexicon is initially underspecified: that some features may be NIL (not specified as either plus or minus). A NIL feature is represented either with no ...

In English, declarative sentences do not usually begin with a verb. Let us suppose you are struggling in a language class, and complain about it to a friend. "It seems like French is hard," you say.

They may not have verbs, nouns or past participles, but birds challenge the notion that humans alone have evolved grammatical rules. Bengal finches have their own versions of such rules – known as ...