Editing Gur languages (section)

==Typological features==
Like most Niger–Congo languages, the ancestor of Gur languages probably had a [[noun class]] system; many of today's languages have reduced this to a system of nominal [[grammatical gender|gender]]s or declensions or no longer have a class system.<ref>Manessy (1968/71), Naden (1989)</ref> A common property of Gur languages is the verbal [[grammatical aspect|aspect]] marking. Almost all Gur languages are [[tone language|tonal]], with [[Koromfé]] being a notable exception. The tonal systems of Gur languages are rather divergent. Most Gur languages have been described as following the model of a two tone [[downstep]] system, but the languages of Oti-Volta branch and some others have three phonemic tones.