bayram

/ bajram /

Cases

SingularPluralWhen to use it
nominative bayram the holiday bayramla the holidays the plain dictionary form — the doer of the sentence
genitive bayramnı the holiday's bayramlanı the holidays' the owner — whose it is
accusative bayramnı the holiday (as the object) bayramlanı the holidays (as the object) a specific, known object — whom or what
dative bayramğa to the holiday bayramlağa to the holidays direction or recipient — to where, to whom
locative bayramda at / in the holiday bayramlada at / in the holidays where it is; also having — mende bar, "I have it"
ablative bayramdan from the holiday bayramladan from the holidays 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
my bayramım my holiday bayramlarım my holidays
your bayramıŋ your holiday bayramlarıŋ your holidays
his / her bayramı his / her holiday bayramları his / her holidays
our bayramıbız our holiday bayramlarıbız our holidays
you all's bayramığız you all's holiday bayramlarığız you all's holidays
their bayramları their holiday bayramları their holidays

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