alan

/alan/

Cases

SingularPluralWhen to use it
nominativealanthe Alanalanlathe Alansthe plain dictionary form — the doer of the sentence
genitivealannıthe Alan'salanlanıthe Alans'the owner — whose it is
accusativealannıthe Alan (as the object)alanlanıthe Alans (as the object)a specific, known object — whom or what
dativealangato the Alanalanlağato the Alansdirection or recipient — to where, to whom
locativealandaat / in the Alanalanladaat / in the Alanswhere it is; also having — mende bar, "I have it"
ablativealandanfrom the Alanalanladanfrom the Alanswhere 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
myalanımmy Alanalanlarımmy Alans
youralanıngyour Alanalanlarıngyour Alans
his / heralanıhis / her Alanalanlarıhis / her Alans
ouralanıbızour Alanalanlarıbızour Alans
you all'salanığızyou all's Alanalanlarığızyou all's Alans
theiralanlarıtheir Alanalanlarıtheir Alans

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