papka

/papka/

Cases

SingularPluralWhen to use it
nominativepapkathe folderpapkalathe foldersthe plain dictionary form — the doer of the sentence
genitivepapkanıthe folder'spapkalanıthe folders'the owner — whose it is
accusativepapkanıthe folder (as the object)papkalanıthe folders (as the object)a specific, known object — whom or what
dativepapkağato the folderpapkalağato the foldersdirection or recipient — to where, to whom
locativepapkadaat / in the folderpapkaladaat / in the folderswhere it is; also having — mende bar, "I have it"
ablativepapkadanfrom the folderpapkaladanfrom the folderswhere 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
mypapkammy folderpapkalarımmy folders
yourpapkangyour folderpapkalarıngyour folders
his / herpapkasıhis / her folderpapkalarıhis / her folders
ourpapkabızour folderpapkalarıbızour folders
you all'spapkağızyou all's folderpapkalarığızyou all's folders
theirpapkalarıtheir folderpapkalarıtheir folders

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