This paper deals with the problems inherent in determining the syntactic word class of the initial word in many common noun phrases in Philippine languages such as Tagalog ang, Ilokano ti, and Bontok nan. These forms have been variously called case-marking particles, construction markers, common noun markers, articles, determiners, specifiers, or simply proclitics. However, a good syntactic typology of the languages requires that a decision be made as to their word class, based not simply on functional characteristics, semantic features, or translation equivalents, but on their syntactic distribution. Under certain assumptions, these words would be determiners, with the immediately following word being the head noun of its phrase. However, ...