bort

/bort/

Cases

SingularPluralWhen to use it
nominativebortthe sidebortlathe sidesthe plain dictionary form — the doer of the sentence
genitivebortnuthe side'sbortlanıthe sides'the owner — whose it is
accusativebortnuthe side (as the object)bortlanıthe sides (as the object)a specific, known object — whom or what
dativeborthato the sidebortlağato the sidesdirection or recipient — to where, to whom
locativebortdaat / in the sidebortladaat / in the sideswhere it is; also having — mende bar, "I have it"
ablativebortdanfrom the sidebortladanfrom the sideswhere 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
mybortummy sidebortlarımmy sides
yourbortungyour sidebortlarıngyour sides
his / herbortuhis / her sidebortlarıhis / her sides
ourbortubuzour sidebortlarıbızour sides
you all'sbortuğuzyou all's sidebortlarığızyou all's sides
theirbortlarıtheir sidebortlarıtheir sides

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