tıl

/tɯl/

Cases

SingularPluralWhen to use it
nominativetılthe reartıllathe rearsthe plain dictionary form — the doer of the sentence
genitivetılnıthe rear'stıllanıthe rears'the owner — whose it is
accusativetılnıthe rear (as the object)tıllanıthe rears (as the object)a specific, known object — whom or what
dativetılğato the reartıllağato the rearsdirection or recipient — to where, to whom
locativetıldaat / in the reartılladaat / in the rearswhere it is; also having — mende bar, "I have it"
ablativetıldanfrom the reartılladanfrom the rearswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
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
mytılımmy reartıllarımmy rears
yourtılıngyour reartıllarıngyour rears
his / hertılıhis / her reartıllarıhis / her rears
ourtılıbızour reartıllarıbızour rears
you all'stılığızyou all's reartıllarığızyou all's rears
theirtıllarıtheir reartıllarıtheir rears

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