barmak

/ barmaq /

Cases

SingularPluralWhen to use it
nominative barmak the finger barmakla the fingers the plain dictionary form — the doer of the sentence
genitive barmaknı the finger's barmaklanı the fingers' the owner — whose it is
accusative barmaknı the finger (as the object) barmaklanı the fingers (as the object) a specific, known object — whom or what
dative barmakğa to the finger barmaklağa to the fingers direction or recipient — to where, to whom
locative barmakda at / in the finger barmaklada at / in the fingers where it is; also having — mende bar, "I have it"
ablative barmakdan from the finger barmakladan from the fingers 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 barmağım my finger barmaklarım my fingers
your barmağıng your finger barmaklarıng your fingers
his / her barmağı his / her finger barmakları his / her fingers
our barmağıbız our finger barmaklarıbız our fingers
you all's barmağığız you all's finger barmaklarığız you all's fingers
their barmakları their finger barmakları their fingers

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