qış

/qɯʃ/

Cases

SingularPluralWhen to use it
nominativeqışthe winterqışlathe wintersthe plain dictionary form — the doer of the sentence
genitiveqışnıthe winter'sqışlanıthe winters'the owner — whose it is
accusativeqışnıthe winter (as the object)qışlanıthe winters (as the object)a specific, known object — whom or what
dativeqışhato the winterqışlağato the wintersdirection or recipient — to where, to whom
locativeqışdaat / in the winterqışladaat / in the winterswhere it is; also having — mende bar, "I have it"
ablativeqışdanfrom the winterqışladanfrom the winterswhere 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
myqışımmy winterqışlarımmy winters
yourqışıngyour winterqışlarıngyour winters
his / herqışıhis / her winterqışlarıhis / her winters
ourqışıbızour winterqışlarıbızour winters
you all'sqışığızyou all's winterqışlarığızyou all's winters
theirqışlarıtheir winterqışlarıtheir winters

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