kölek

/ kølek /

Cases

SingularPluralWhen to use it
nominative kölek the shirt kölekle the shirts the plain dictionary form — the doer of the sentence
genitive kölekni the shirt's kölekleni the shirts' the owner — whose it is
accusative kölekni the shirt (as the object) kölekleni the shirts (as the object) a specific, known object — whom or what
dative kölekge to the shirt köleklege to the shirts direction or recipient — to where, to whom
locative kölekde at / in the shirt köleklede at / in the shirts where it is; also having — mende bar, "I have it"
ablative kölekden from the shirt kölekleden from the shirts 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 kölegim my shirt köleklerim my shirts
your kölegiŋ your shirt kölekleriŋ your shirts
his / her kölegi his / her shirt kölekleri his / her shirts
our kölegibiz our shirt kölekleribiz our shirts
you all's kölegigiz you all's shirt köleklerigiz you all's shirts
their kölekleri their shirt kölekleri their shirts

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