This monograph presents the results of a syntactic and focus- theoretical investigation of secondary predication constructions. The syntactic analysis is couched in the principles and parameters theory. The focus analysis addresses the question of the prosodic realization of secondary predication constructions as well as their focus projection capacities and compares them not only to each other, but also to focus projection regularities in primary predications. This multilayered account shows that although the various types of secondary predication constructions have many aspects in common, they differ with respect to their distributional, binding-theoretic, and focus structure properties.