"Such as" is sometimes treated as a correlative construction, and the fact that "such" can precede "vocal structures" argues against prepositional status. Altering the position of such vocal structures as the tongue and lips produces different sounds. Herb From: Assembly for the Teaching of English Grammar [mailto:[log in to unmask]] On Behalf Of Castilleja, Janet Sent: 2009-02-20 13:22 To: [log in to unmask] Subject: such as In the following sentence, would you consider 'such as the tongue and lips' a prepositional phrase? Can 'such as' function as a preposition? Altering the position of vocal structures such as the tongue and lips produces different sounds. Janet To join or leave this LISTSERV list, please visit the list's web interface at: http://listserv.muohio.edu/archives/ateg.html and select "Join or leave the list" Visit ATEG's web site at http://ateg.org/ To join or leave this LISTSERV list, please visit the list's web interface at: http://listserv.muohio.edu/archives/ateg.html and select "Join or leave the list" Visit ATEG's web site at http://ateg.org/