Published online by Cambridge University Press: 22 October 2012
I argue in this article that adverb-forming -ly, unlike its adjective-forming counterpart, is an inflectional suffix, that therefore adverbs containing -ly are inflected adjectives and that, consequently, adverbs not containing -ly are uninflected adjectives. I demonstrate that in English, the traditional category Adverb is morphologically non-distinct from the category Adjective in that it has no morphology of its own but instead shares all relevant aspects of the morphology of adjectives. I demonstrate moreover that such an analysis explains various aspects of morphological and phonological behaviour on the part of adverbial -ly which differ from the behaviour of adjectival -ly and/or from the behaviour of derivational suffixes. And I argue that contrary to a recent claim, the syntactic behaviour of adverbs presents no obstacle to the single-category analysis of adjectives and adverbs warranted by the morphology.
This article is at least in part a response to Payne, Huddleston & Pullum (2010). Indeed, it probably owes its very existence to conversations with my departmental colleague Geoff Pullum, whose disagreement I gratefully and cheerfully acknowledge. Heike Baeskow, Nik Gisborne, Tracy Hall, S. J. Hannahs, Donka Minkova, Ingo Plag, Hans-Jörg Schmid, Greg Stump and two anonymous reviewers have also provided helpful comments and suggestions.