Descriptions of natural language grammars tend to focus on the canonical constructions of a language, yet actual usage also displays constructions that are marked in different ways and thus deviate from the canonical form—the so-called non-canonical constructions. This subproject aims to validate the hypothesis that natural language grammars of a particular language constitute systems of construction that are centered on a set of canonical constructions which are complemented by a set of peripheral non-canonical constructions. As non-canonical constructions are used rarely compared to their canonical counterparts, a broad range of corpora needs to be collected to build the empirical foundation for the intended studies. On these corpora, studies of canonical and non-canonical constructions in German and English—for instance on inversion, extraposition, and cleft sentences in English and their equivalents in German—and comparative analysis between the two languages are to be performed using patterns over automatically identifiable features like parts of speech and parses.