legenda

/leɡenda/

Cases

SingularPluralWhen to use it
nominativelegendathe legendlegendalathe legendsthe plain dictionary form — the doer of the sentence
genitivelegendanıthe legend'slegendalanıthe legends'the owner — whose it is
accusativelegendanıthe legend (as the object)legendalanıthe legends (as the object)a specific, known object — whom or what
dativelegendağato the legendlegendalağato the legendsdirection or recipient — to where, to whom
locativelegendadaat / in the legendlegendaladaat / in the legendswhere it is; also having — mende bar, "I have it"
ablativelegendadanfrom the legendlegendaladanfrom the legendswhere 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
mylegendammy legendlegendalarımmy legends
yourlegendangyour legendlegendalarıngyour legends
his / herlegendasıhis / her legendlegendalarıhis / her legends
ourlegendabızour legendlegendalarıbızour legends
you all'slegendağızyou all's legendlegendalarığızyou all's legends
theirlegendalarıtheir legendlegendalarıtheir legends

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