kerki

/kerki/

Cases

SingularPluralWhen to use it
nominativekerkithe adzekerkilethe adzesthe plain dictionary form — the doer of the sentence
genitivekerkinithe adze'skerkilenithe adzes'the owner — whose it is
accusativekerkinithe adze (as the object)kerkilenithe adzes (as the object)a specific, known object — whom or what
dativekerkigeto the adzekerkilegeto the adzesdirection or recipient — to where, to whom
locativekerkideat / in the adzekerkiledeat / in the adzeswhere it is; also having — mende bar, "I have it"
ablativekerkidenfrom the adzekerkiledenfrom the adzeswhere 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
mykerkimmy adzekerkilerimmy adzes
yourkerkingyour adzekerkileringyour adzes
his / herkerkisihis / her adzekerkilerihis / her adzes
ourkerkibizour adzekerkileribizour adzes
you all'skerkigizyou all's adzekerkilerigizyou all's adzes
theirkerkileritheir adzekerkileritheir adzes

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