begitiliw

/ beɡitiliw /

Cases

SingularPluralWhen to use it
nominative begitiliw the being fastened begitiliwle the being fasteneds the plain dictionary form — the doer of the sentence
genitive begitiliwni the being fastened's begitiliwleni the being fasteneds' the owner — whose it is
accusative begitiliwni the being fastened (as the object) begitiliwleni the being fasteneds (as the object) a specific, known object — whom or what
dative begitiliwge to the being fastened begitiliwlege to the being fasteneds direction or recipient — to where, to whom
locative begitiliwde at / in the being fastened begitiliwlede at / in the being fasteneds where it is; also having — mende bar, "I have it"
ablative begitiliwden from the being fastened begitiliwleden from the being fasteneds 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 begitiliwim my being fastened begitiliwlerim my being fasteneds
your begitiliwiŋ your being fastened begitiliwleriŋ your being fasteneds
his / her begitiliwi his / her being fastened begitiliwleri his / her being fasteneds
our begitiliwibiz our being fastened begitiliwleribiz our being fasteneds
you all's begitiliwigiz you all's being fastened begitiliwlerigiz you all's being fasteneds
their begitiliwleri their being fastened begitiliwleri their being fasteneds

The overlap in the last rows is real, not a mistake: begitiliwleri can mean "his / her being fasteneds", "their being fastened", or "their being fasteneds" — context decides.