sezon

/sezon/

Cases

SingularPluralWhen to use it
nominativesezonthe seasonsezonlathe seasonsthe plain dictionary form — the doer of the sentence
genitivesezonnuthe season'ssezonlanıthe seasons'the owner — whose it is
accusativesezonnuthe season (as the object)sezonlanıthe seasons (as the object)a specific, known object — whom or what
dativesezongato the seasonsezonlağato the seasonsdirection or recipient — to where, to whom
locativesezondaat / in the seasonsezonladaat / in the seasonswhere it is; also having — mende bar, "I have it"
ablativesezondanfrom the seasonsezonladanfrom the seasonswhere 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
mysezonummy seasonsezonlarımmy seasons
yoursezonungyour seasonsezonlarıngyour seasons
his / hersezonuhis / her seasonsezonlarıhis / her seasons
oursezonubuzour seasonsezonlarıbızour seasons
you all'ssezonuğuzyou all's seasonsezonlarığızyou all's seasons
theirsezonlarıtheir seasonsezonlarıtheir seasons

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