English comparative modals and their complements

English comparative modals are combinations of the adverbs rather , sooner and better with an auxiliary. There is recent consensus that the comparative modals rather and sooner have over time developed a different syntax and semantics than better . However, potential differences in the syntax of rather and sooner with respect to patterns of complementation haven’t been explored. This article reports the results of a corpus study of these two modals and finds that rather patterns like object-raising verbs, allowing a range of complements that are unavailable for sooner . Our analysis of these patterns draws on recent work in the Construction Grammar framework, with forays into its formal implementation, Sign-Based Construction Grammar, and we propose that rather differs from sooner in that it constitutes a micro-construction whose features are licensed by both the Modal Construction and the Object-Raising Construction, the latter a subtype of the Transitive Construction.