buqu

/ buqu /

Cases

SingularPluralWhen to use it
nominative buqu the dust buqula the dusts the plain dictionary form — the doer of the sentence
genitive buqunu the dust's buqulanı the dusts' the owner — whose it is
accusative buqunu the dust (as the object) buqulanı the dusts (as the object) a specific, known object — whom or what
dative buquğa to the dust buqulağa to the dusts direction or recipient — to where, to whom
locative buquda at / in the dust buqulada at / in the dusts where it is; also having — mende bar, "I have it"
ablative buqudan from the dust buquladan from the dusts 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 buqum my dust buqularım my dusts
your buquŋ your dust buqularıŋ your dusts
his / her buqusu his / her dust buquları his / her dusts
our buqubuz our dust buqularıbız our dusts
you all's buquğuz you all's dust buqularığız you all's dusts
their buquları their dust buquları their dusts

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