Morphology-syntax interface. Generalized person-case constraint. Causation hierarchy, semantic control and eventivity in Nisgha. Deep unaccusativity and zero syntax in St'át'imcets. 'Out of control' in Salish and event (de)composition. Spanish event infinitives. Feature licensing, morphological words and phonological domains in Basque. The limits of argument structure. Verb incorporation and causation types. Parameter variation in determiner systems: Salish vs. English. Argument structure and animacy entailment. Nested paths in syntactically ergative languages. Disagreement between adults and children. Locative sentences and related constructions in Catalan.