qıyıwçu

/ qɯjɯwtʃu /

Cases

SingularPluralWhen to use it
nominative qıyıwçu the one who sharpens qıyıwçula the one who sharpenses the plain dictionary form — the doer of the sentence
genitive qıyıwçunu the one who sharpens' qıyıwçulanı the one who sharpenses' the owner — whose it is
accusative qıyıwçunu the one who sharpens (as the object) qıyıwçulanı the one who sharpenses (as the object) a specific, known object — whom or what
dative qıyıwçuğa to the one who sharpens qıyıwçulağa to the one who sharpenses direction or recipient — to where, to whom
locative qıyıwçuda at / in the one who sharpens qıyıwçulada at / in the one who sharpenses where it is; also having — mende bar, "I have it"
ablative qıyıwçudan from the one who sharpens qıyıwçuladan from the one who sharpenses 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 qıyıwçum my one who sharpens qıyıwçularım my one who sharpenses
your qıyıwçuŋ your one who sharpens qıyıwçularıŋ your one who sharpenses
his / her qıyıwçusu his / her one who sharpens qıyıwçuları his / her one who sharpenses
our qıyıwçubuz our one who sharpens qıyıwçularıbız our one who sharpenses
you all's qıyıwçuğuz you all's one who sharpens qıyıwçularığız you all's one who sharpenses
their qıyıwçuları their one who sharpens qıyıwçuları their one who sharpenses

The overlap in the last rows is real, not a mistake: qıyıwçuları can mean "his / her one who sharpenses", "their one who sharpens", or "their one who sharpenses" — context decides.