üydegi

/ yjdeɡi /

Cases

SingularPluralWhen to use it
nominative üydegi the family üydegile the families the plain dictionary form — the doer of the sentence
genitive üydegini the family's üydegileni the families' the owner — whose it is
accusative üydegini the family (as the object) üydegileni the families (as the object) a specific, known object — whom or what
dative üydegige to the family üydegilege to the families direction or recipient — to where, to whom
locative üydegide at / in the family üydegilede at / in the families where it is; also having — mende bar, "I have it"
ablative üydegiden from the family üydegileden from the families 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 üydegim my family üydegilerim my families
your üydeging your family üydegilering your families
his / her üydegisi his / her family üydegileri his / her families
our üydegibiz our family üydegileribiz our families
you all's üydegigiz you all's family üydegilerigiz you all's families
their üydegileri their family üydegileri their families

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