ulan

/ ulan /

Cases

SingularPluralWhen to use it
nominative ulan the son ulanla the sons the plain dictionary form — the doer of the sentence
genitive ulannı the son's ulanlanı the sons' the owner — whose it is
accusative ulannı the son (as the object) ulanlanı the sons (as the object) a specific, known object — whom or what
dative ulanğa to the son ulanlağa to the sons direction or recipient — to where, to whom
locative ulanda at / in the son ulanlada at / in the sons where it is; also having — mende bar, "I have it"
ablative ulandan from the son ulanladan from the sons 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 ulanım my son ulanlarım my sons
your ulanıŋ your son ulanlarıŋ your sons
his / her ulanı his / her son ulanları his / her sons
our ulanıbız our son ulanlarıbız our sons
you all's ulanığız you all's son ulanlarığız you all's sons
their ulanları their son ulanları their sons

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