But where do you see 'ένας' for a/one? This is the guideline: https://www.duolingo.com/skill/el/Basics-1/tips-and-notes
I suppose it's the 'cases', but that says:
Nominative singular ο άντρας = the man η γυναίκα = the woman Genitive singular του άντρα = of the man της γυναίκας = of the woman Accusative singular τον άντρα = the man τη γυναίκα = the woman Vocative singular άντρα = man γυναίκα = woman
So where do I find the indefinete article (isn't that what it is called? - What I mean is, where do I find out how to say a for masculine, feminine and neuter? And does it also differ for different casus? (Nominative, Genitive, Accusative etc.)
But where do you see 'ένας' for a/one?
It's in the Basics 2 Tips and notes (https://www.duolingo.com/skill/el/Basics-2/tips-and-notes) :)