2

At the same time, there are languages like Karitiana(Tupi)that do not have number marking on nouns at all as exemplified in (3).
(3)Taso naka yt borja (Karitiana) 
taso ∅-naka-'yt boroja 
man 3-DECL-eat-NFUT snake 
The/a/some man/men ate the/a/some snake(s).
(Müller and Sanches-mendez, 2008: 445, (9))