kaştan

/kaʃtan/

Cases

SingularPluralWhen to use it
nominativekaştanthe chestnutkaştanlathe chestnutsthe plain dictionary form — the doer of the sentence
genitivekaştannıthe chestnut'skaştanlanıthe chestnuts'the owner — whose it is
accusativekaştannıthe chestnut (as the object)kaştanlanıthe chestnuts (as the object)a specific, known object — whom or what
dativekaştangato the chestnutkaştanlağato the chestnutsdirection or recipient — to where, to whom
locativekaştandaat / in the chestnutkaştanladaat / in the chestnutswhere it is; also having — mende bar, "I have it"
ablativekaştandanfrom the chestnutkaştanladanfrom the chestnutswhere 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
mykaştanımmy chestnutkaştanlarımmy chestnuts
yourkaştanıngyour chestnutkaştanlarıngyour chestnuts
his / herkaştanıhis / her chestnutkaştanlarıhis / her chestnuts
ourkaştanıbızour chestnutkaştanlarıbızour chestnuts
you all'skaştanığızyou all's chestnutkaştanlarığızyou all's chestnuts
theirkaştanlarıtheir chestnutkaştanlarıtheir chestnuts

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