tülkü

/tylky/

Cases

SingularPluralWhen to use it
nominativetülküthe foxtülkülethe foxesthe plain dictionary form — the doer of the sentence
genitivetülkünüthe fox'stülkülenithe foxes'the owner — whose it is
accusativetülkünüthe fox (as the object)tülkülenithe foxes (as the object)a specific, known object — whom or what
dativetülkügeto the foxtülkülegeto the foxesdirection or recipient — to where, to whom
locativetülküdeat / in the foxtülküledeat / in the foxeswhere it is; also having — mende bar, "I have it"
ablativetülküdenfrom the foxtülküledenfrom the foxeswhere 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
mytülkümmy foxtülkülerimmy foxes
yourtülküngyour foxtülküleringyour foxes
his / hertülküsühis / her foxtülkülerihis / her foxes
ourtülkübüzour foxtülküleribizour foxes
you all'stülkügüzyou all's foxtülkülerigizyou all's foxes
theirtülküleritheir foxtülküleritheir foxes

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