tamamlawçu

/ tamamlawtʃu /

Cases

SingularPluralWhen to use it
nominative tamamlawçu the one who finishes tamamlawçula the one who finisheses the plain dictionary form — the doer of the sentence
genitive tamamlawçunu the one who finishes' tamamlawçulanı the one who finisheses' the owner — whose it is
accusative tamamlawçunu the one who finishes (as the object) tamamlawçulanı the one who finisheses (as the object) a specific, known object — whom or what
dative tamamlawçuğa to the one who finishes tamamlawçulağa to the one who finisheses direction or recipient — to where, to whom
locative tamamlawçuda at / in the one who finishes tamamlawçulada at / in the one who finisheses where it is; also having — mende bar, "I have it"
ablative tamamlawçudan from the one who finishes tamamlawçuladan from the one who finisheses 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 tamamlawçum my one who finishes tamamlawçularım my one who finisheses
your tamamlawçuŋ your one who finishes tamamlawçularıŋ your one who finisheses
his / her tamamlawçusu his / her one who finishes tamamlawçuları his / her one who finisheses
our tamamlawçubuz our one who finishes tamamlawçularıbız our one who finisheses
you all's tamamlawçuğuz you all's one who finishes tamamlawçularığız you all's one who finisheses
their tamamlawçuları their one who finishes tamamlawçuları their one who finisheses

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