çına

/tʃɯna/

Cases

SingularPluralWhen to use it
nominativeçınathe elbowçınalathe elbowsthe plain dictionary form — the doer of the sentence
genitiveçınanıthe elbow'sçınalanıthe elbows'the owner — whose it is
accusativeçınanıthe elbow (as the object)çınalanıthe elbows (as the object)a specific, known object — whom or what
dativeçınağato the elbowçınalağato the elbowsdirection or recipient — to where, to whom
locativeçınadaat / in the elbowçınaladaat / in the elbowswhere it is; also having — mende bar, "I have it"
ablativeçınadanfrom the elbowçınaladanfrom the elbowswhere 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
myçınammy elbowçınalarımmy elbows
yourçınangyour elbowçınalarıngyour elbows
his / herçınasıhis / her elbowçınalarıhis / her elbows
ourçınabızour elbowçınalarıbızour elbows
you all'sçınağızyou all's elbowçınalarığızyou all's elbows
theirçınalarıtheir elbowçınalarıtheir elbows

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