sibiriwçü

/ sibiriwtʃy /

Cases

SingularPluralWhen to use it
nominative sibiriwçü the one who sweeps sibiriwçüle the one who sweepses the plain dictionary form — the doer of the sentence
genitive sibiriwçünü the one who sweeps' sibiriwçüleni the one who sweepses' the owner — whose it is
accusative sibiriwçünü the one who sweeps (as the object) sibiriwçüleni the one who sweepses (as the object) a specific, known object — whom or what
dative sibiriwçüge to the one who sweeps sibiriwçülege to the one who sweepses direction or recipient — to where, to whom
locative sibiriwçüde at / in the one who sweeps sibiriwçülede at / in the one who sweepses where it is; also having — mende bar, "I have it"
ablative sibiriwçüden from the one who sweeps sibiriwçüleden from the one who sweepses 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 sibiriwçüm my one who sweeps sibiriwçülerim my one who sweepses
your sibiriwçüŋ your one who sweeps sibiriwçüleriŋ your one who sweepses
his / her sibiriwçüsü his / her one who sweeps sibiriwçüleri his / her one who sweepses
our sibiriwçübüz our one who sweeps sibiriwçüleribiz our one who sweepses
you all's sibiriwçügüz you all's one who sweeps sibiriwçülerigiz you all's one who sweepses
their sibiriwçüleri their one who sweeps sibiriwçüleri their one who sweepses

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