bişiriwçü

/ biʃiriwtʃy /

Cases

SingularPluralWhen to use it
nominative bişiriwçü the one who cooks bişiriwçüle the one who cookses the plain dictionary form — the doer of the sentence
genitive bişiriwçünü the one who cooks' bişiriwçüleni the one who cookses' the owner — whose it is
accusative bişiriwçünü the one who cooks (as the object) bişiriwçüleni the one who cookses (as the object) a specific, known object — whom or what
dative bişiriwçüge to the one who cooks bişiriwçülege to the one who cookses direction or recipient — to where, to whom
locative bişiriwçüde at / in the one who cooks bişiriwçülede at / in the one who cookses where it is; also having — mende bar, "I have it"
ablative bişiriwçüden from the one who cooks bişiriwçüleden from the one who cookses 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 bişiriwçüm my one who cooks bişiriwçülerim my one who cookses
your bişiriwçüŋ your one who cooks bişiriwçüleriŋ your one who cookses
his / her bişiriwçüsü his / her one who cooks bişiriwçüleri his / her one who cookses
our bişiriwçübüz our one who cooks bişiriwçüleribiz our one who cookses
you all's bişiriwçügüz you all's one who cooks bişiriwçülerigiz you all's one who cookses
their bişiriwçüleri their one who cooks bişiriwçüleri their one who cookses

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