tapha

/tapxa/

Cases

SingularPluralWhen to use it
nominativetaphathe shelftaphalathe shelvesthe plain dictionary form — the doer of the sentence
genitivetaphanıthe shelf'staphalanıthe shelves'the owner — whose it is
accusativetaphanıthe shelf (as the object)taphalanıthe shelves (as the object)a specific, known object — whom or what
dativetaphağato the shelftaphalağato the shelvesdirection or recipient — to where, to whom
locativetaphadaat / in the shelftaphaladaat / in the shelveswhere it is; also having — mende bar, "I have it"
ablativetaphadanfrom the shelftaphaladanfrom the shelveswhere 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
mytaphammy shelftaphalarımmy shelves
yourtaphangyour shelftaphalarıngyour shelves
his / hertaphasıhis / her shelftaphalarıhis / her shelves
ourtaphabızour shelftaphalarıbızour shelves
you all'staphağızyou all's shelftaphalarığızyou all's shelves
theirtaphalarıtheir shelftaphalarıtheir shelves

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