biyçe

/ bijtʃe /

Cases

SingularPluralWhen to use it
nominative biyçe the princess biyçele the princesses the plain dictionary form — the doer of the sentence
genitive biyçeni the princess' biyçeleni the princesses' the owner — whose it is
accusative biyçeni the princess (as the object) biyçeleni the princesses (as the object) a specific, known object — whom or what
dative biyçege to the princess biyçelege to the princesses direction or recipient — to where, to whom
locative biyçede at / in the princess biyçelede at / in the princesses where it is; also having — mende bar, "I have it"
ablative biyçeden from the princess biyçeleden from the princesses where it comes from; also "than" when comparing

The endings are the same ones the pronouns wear — that page explains when each case is used.

With an owner

One ownedSeveral owned
my biyçem my princess biyçelerim my princesses
your biyçeŋ your princess biyçeleriŋ your princesses
his / her biyçesi his / her princess biyçeleri his / her princesses
our biyçebiz our princess biyçeleribiz our princesses
you all's biyçegiz you all's princess biyçelerigiz you all's princesses
their biyçeleri their princess biyçeleri their princesses

The overlap in the last rows is real, not a mistake: biyçeleri can mean "his / her princesses", "their princess", or "their princesses" — context decides.