A few and 4 appear to be exceptions and i am thinking whether or not there's any rule for that, linguistic or mathematical, or it's just traditional.Na God i tokim Adam olsem, “Yu bin harim tok bilong meri bilong yu, na yu bin kaikai pikinini bilong dispela diwai mi bin tambuim yu long kaikai. Olsem na nau bai mi bagarapim graun, na ol kaikai bai