Complex Noun Phrases and Formal Licensing in Isbukun Bunun

This paper investigates the syntactic status of nominal modifiers in Isbukun Bunun, an Austronesian language spoken in Taiwan. In Isbukun Bunun, nominal modifiers such as possessors, adjectives, demonstratives, and relative clauses precede the head noun they modify, and they may or must be linked to the head noun by an associative marker tu. Based on the observed NP-ellipsis facts and the formal licensing condition, I argue that the associative marker tu is a complementizer, and the structure it introduces should be accommodated under the adjunction analysis, whereas various existing alternative complementation approaches that view tu as a head selecting the modified phrase as its complement fail to capture the noted properties regarding ellipsis.