kaput

/kaput/

Cases

SingularPluralWhen to use it
nominativekaputthe ruinkaputlathe ruinsthe plain dictionary form — the doer of the sentence
genitivekaputnuthe ruin'skaputlanıthe ruins'the owner — whose it is
accusativekaputnuthe ruin (as the object)kaputlanıthe ruins (as the object)a specific, known object — whom or what
dativekaputhato the ruinkaputlağato the ruinsdirection or recipient — to where, to whom
locativekaputdaat / in the ruinkaputladaat / in the ruinswhere it is; also having — mende bar, "I have it"
ablativekaputdanfrom the ruinkaputladanfrom the ruinswhere 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
mykaputummy ruinkaputlarımmy ruins
yourkaputungyour ruinkaputlarıngyour ruins
his / herkaputuhis / her ruinkaputlarıhis / her ruins
ourkaputubuzour ruinkaputlarıbızour ruins
you all'skaputuğuzyou all's ruinkaputlarığızyou all's ruins
theirkaputlarıtheir ruinkaputlarıtheir ruins

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