Chapter 6 focuses on the interface between morphology and syntax. We discuss case, postpositions, delimiters, nominalization, and numerals. We look at nominative, accusative, and genitive cases, describing their distribution and allomorphy and devote special attention to contexts where nominative and accusative usage is interchangeable or nearly so. We introduce the case marking postpositions: dative, locative, direction, goal, source, conjunctive, and disjunctive. The three most common delimiters – particles marking association with focus – are introduced with their properties. We discuss three nominalization processes, derived from four distinct parts of speech. We present constructions related to numerality, including cardinal numbers, ordinal numbers, numeral classifier phrases, and the marking of plurality. As Korean speakers have been using Chinese characters from early in the Common Era, the Sino-Korean stratum has heavily impacted Korean morphosyntax, and we see this impact particularly in numerality. We describe the well-known “ubiquitous” nature of the Korean plural marker tul, which appears not only on pluralized NPs, but on other parts of speech as well.