küe

/kye/

Cases

SingularPluralWhen to use it
nominativeküethe mothküelethe mothsthe plain dictionary form — the doer of the sentence
genitiveküenithe moth'sküelenithe moths'the owner — whose it is
accusativeküenithe moth (as the object)küelenithe moths (as the object)a specific, known object — whom or what
dativeküegeto the mothküelegeto the mothsdirection or recipient — to where, to whom
locativeküedeat / in the mothküeledeat / in the mothswhere it is; also having — mende bar, "I have it"
ablativeküedenfrom the mothküeledenfrom the mothswhere 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
myküemmy mothküelerimmy moths
yourküengyour mothküeleringyour moths
his / herküesihis / her mothküelerihis / her moths
ourküebizour mothküeleribizour moths
you all'sküegizyou all's mothküelerigizyou all's moths
theirküeleritheir mothküeleritheir moths

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