ilker

/ilker/

Cases

SingularPluralWhen to use it
nominativeilkerthe Pleiadesilkerlethe Pleiadesesthe plain dictionary form — the doer of the sentence
genitiveilkernithe Pleiades'ilkerlenithe Pleiadeses'the owner — whose it is
accusativeilkernithe Pleiades (as the object)ilkerlenithe Pleiadeses (as the object)a specific, known object — whom or what
dativeilkergeto the Pleiadesilkerlegeto the Pleiadesesdirection or recipient — to where, to whom
locativeilkerdeat / in the Pleiadesilkerledeat / in the Pleiadeseswhere it is; also having — mende bar, "I have it"
ablativeilkerdenfrom the Pleiadesilkerledenfrom the Pleiadeseswhere it comes from; also "than" when comparing
When to use each case
nominative
the plain dictionary form — the doer of the sentence
genitive
the owner — whose it is
accusative
a specific, known object — whom or what
dative
direction or recipient — to where, to whom
locative
where it is; also having — mende bar, "I have it"
ablative
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
myilkerimmy Pleiadesilkerlerimmy Pleiadeses
yourilkeringyour Pleiadesilkerleringyour Pleiadeses
his / herilkerihis / her Pleiadesilkerlerihis / her Pleiadeses
ourilkeribizour Pleiadesilkerleribizour Pleiadeses
you all'silkerigizyou all's Pleiadesilkerlerigizyou all's Pleiadeses
theirilkerleritheir Pleiadesilkerleritheir Pleiadeses

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