Editing Adposition (section)

==Proper ''versus'' improper==

In descriptions of some languages, prepositions are divided into '''proper''' (or ''essential'') and '''improper''' (or ''accidental''). A preposition is called improper if it is some other part of speech being used in the same way as a preposition. Examples of simple and complex prepositions that have been so classified include ''prima di'' ("before") and ''davanti (a)'' ("in front of") in [[Italian grammar|Italian]],<ref>Maria Franca Zuccarello, Edvaldo Sampaio Belizário, [http://www.filologia.org.br/xiicnlf/16/07.pdf As preposições acidentais (preposizioni improprie) italianas e seus termos correpondentes em português], CNLF, Vol. XII No. 16, p. 72.</ref> and ''ergo'' ("on account of") and ''causa'' ("for the sake of") in [[Latin grammar|Latin]].<ref>Harm Pinkster, ''On Latin Adverbs'', Amsterdam University Press 2005, p. 148.</ref>  In reference to [[Ancient Greek language|Ancient Greek]], however, an improper preposition is one that cannot also serve as a [[prefix]] to a [[verb]].<ref>Stanley E. Porter, ''Idioms of the Greek New Testament'', A&C Black 1992, p. 140.</ref>