ız

/ɯz/

Cases

SingularPluralWhen to use it
nominativeızthe trackızlathe tracksthe plain dictionary form — the doer of the sentence
genitiveıznıthe track'sızlanıthe tracks'the owner — whose it is
accusativeıznıthe track (as the object)ızlanıthe tracks (as the object)a specific, known object — whom or what
dativeızğato the trackızlağato the tracksdirection or recipient — to where, to whom
locativeızdaat / in the trackızladaat / in the trackswhere it is; also having — mende bar, "I have it"
ablativeızdanfrom the trackızladanfrom the trackswhere 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
myızımmy trackızlarımmy tracks
yourızıngyour trackızlarıngyour tracks
his / herızıhis / her trackızlarıhis / her tracks
ourızıbızour trackızlarıbızour tracks
you all'sızığızyou all's trackızlarığızyou all's tracks
theirızlarıtheir trackızlarıtheir tracks

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