köt

/ køt /

Cases

SingularPluralWhen to use it
nominative köt the backside kötle the backsides the plain dictionary form — the doer of the sentence
genitive kötnü the backside's kötleni the backsides' the owner — whose it is
accusative kötnü the backside (as the object) kötleni the backsides (as the object) a specific, known object — whom or what
dative kötge to the backside kötlege to the backsides direction or recipient — to where, to whom
locative kötde at / in the backside kötlede at / in the backsides where it is; also having — mende bar, "I have it"
ablative kötden from the backside kötleden from the backsides 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 kötüm my backside kötlerim my backsides
your kötüŋ your backside kötleriŋ your backsides
his / her kötü his / her backside kötleri his / her backsides
our kötübüz our backside kötleribiz our backsides
you all's kötügüz you all's backside kötlerigiz you all's backsides
their kötleri their backside kötleri their backsides

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