When the subject/object consists of two things, of the SAME KIND, we use 'ikisi' or 'ikisini'. When the subject/object are not of the same kind, but have the same property, or do the same thing etc... we use 'hem... hem de...' Example: 'Both the dresses are blue.'= 'Elbiselerin ikisi de mavi.' as opposed to 'Both the dress and the skirt is blue.'='Hem elbise hem de etek mavi.'
Uhm, why are there 2 "hem"? I mean, am I forced to sorround the first word with those?