"You have a wife."
Translation:Εσύ έχεις μία γυναίκα.
Έχεις μια γυναίκα Έχεις= you have Μια=a (for the female) Γυναίκα = woman So it wouldnt be accepted
Well, technically, it wouldn't be wrong. The article could be omitted here, since one cannot have more than one wife (at least not in Greece.:P).