tayanıwçu

/ tajanɯwtʃu /

Cases

SingularPluralWhen to use it
nominative tayanıwçu the one who leans on tayanıwçula the one who leans ons the plain dictionary form — the doer of the sentence
genitive tayanıwçunu the one who leans on's tayanıwçulanı the one who leans ons' the owner — whose it is
accusative tayanıwçunu the one who leans on (as the object) tayanıwçulanı the one who leans ons (as the object) a specific, known object — whom or what
dative tayanıwçuğa to the one who leans on tayanıwçulağa to the one who leans ons direction or recipient — to where, to whom
locative tayanıwçuda at / in the one who leans on tayanıwçulada at / in the one who leans ons where it is; also having — mende bar, "I have it"
ablative tayanıwçudan from the one who leans on tayanıwçuladan from the one who leans ons 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 tayanıwçum my one who leans on tayanıwçularım my one who leans ons
your tayanıwçuŋ your one who leans on tayanıwçularıŋ your one who leans ons
his / her tayanıwçusu his / her one who leans on tayanıwçuları his / her one who leans ons
our tayanıwçubuz our one who leans on tayanıwçularıbız our one who leans ons
you all's tayanıwçuğuz you all's one who leans on tayanıwçularığız you all's one who leans ons
their tayanıwçuları their one who leans on tayanıwçuları their one who leans ons

The overlap in the last rows is real, not a mistake: tayanıwçuları can mean "his / her one who leans ons", "their one who leans on", or "their one who leans ons" — context decides.