egiz

/ eɡiz /

Cases

SingularPluralWhen to use it
nominative egiz the twin egizle the twins the plain dictionary form — the doer of the sentence
genitive egizni the twin's egizleni the twins' the owner — whose it is
accusative egizni the twin (as the object) egizleni the twins (as the object) a specific, known object — whom or what
dative egizge to the twin egizlege to the twins direction or recipient — to where, to whom
locative egizde at / in the twin egizlede at / in the twins where it is; also having — mende bar, "I have it"
ablative egizden from the twin egizleden from the twins 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 egizim my twin egizlerim my twins
your egiziŋ your twin egizleriŋ your twins
his / her egizi his / her twin egizleri his / her twins
our egizibiz our twin egizleribiz our twins
you all's egizigiz you all's twin egizlerigiz you all's twins
their egizleri their twin egizleri their twins

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