**LEV... Levin, M. 2001. Agreement with Collective Nouns in English. Stockholm: Almquist and Wiksell. Levin, Magnus. 2013. "The progressive verb in modern American English)", in The Verb Phrase in English: Investigating recent language change with corpora, ed. Bas Aarts, Joanne Close, Geoffrey Leech & Sean Wallis, pp. 187-216. CUP.