börk

/ børk /

Cases

SingularPluralWhen to use it
nominative börk the hat börkle the hats the plain dictionary form — the doer of the sentence
genitive börknü the hat's börkleni the hats' the owner — whose it is
accusative börknü the hat (as the object) börkleni the hats (as the object) a specific, known object — whom or what
dative börkge to the hat börklege to the hats direction or recipient — to where, to whom
locative börkde at / in the hat börklede at / in the hats where it is; also having — mende bar, "I have it"
ablative börkden from the hat börkleden from the hats 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 börküm my hat börklerim my hats
your börküŋ your hat börkleriŋ your hats
his / her börkü his / her hat börkleri his / her hats
our börkübüz our hat börkleribiz our hats
you all's börkügüz you all's hat börklerigiz you all's hats
their börkleri their hat börkleri their hats

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