kopiya

/kopija/

Cases

SingularPluralWhen to use it
nominativekopiyathe copykopiyalathe copiesthe plain dictionary form — the doer of the sentence
genitivekopiyanıthe copy'skopiyalanıthe copies'the owner — whose it is
accusativekopiyanıthe copy (as the object)kopiyalanıthe copies (as the object)a specific, known object — whom or what
dativekopiyağato the copykopiyalağato the copiesdirection or recipient — to where, to whom
locativekopiyadaat / in the copykopiyaladaat / in the copieswhere it is; also having — mende bar, "I have it"
ablativekopiyadanfrom the copykopiyaladanfrom the copieswhere 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
mykopiyammy copykopiyalarımmy copies
yourkopiyangyour copykopiyalarıngyour copies
his / herkopiyasıhis / her copykopiyalarıhis / her copies
ourkopiyabızour copykopiyalarıbızour copies
you all'skopiyağızyou all's copykopiyalarığızyou all's copies
theirkopiyalarıtheir copykopiyalarıtheir copies

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