internat

/internat/

Cases

SingularPluralWhen to use it
nominativeinternatthe boarding schoolinternatlathe boarding schoolsthe plain dictionary form — the doer of the sentence
genitiveinternatnıthe boarding school'sinternatlanıthe boarding schools'the owner — whose it is
accusativeinternatnıthe boarding school (as the object)internatlanıthe boarding schools (as the object)a specific, known object — whom or what
dativeinternathato the boarding schoolinternatlağato the boarding schoolsdirection or recipient — to where, to whom
locativeinternatdaat / in the boarding schoolinternatladaat / in the boarding schoolswhere it is; also having — mende bar, "I have it"
ablativeinternatdanfrom the boarding schoolinternatladanfrom the boarding schoolswhere 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
myinternatımmy boarding schoolinternatlarımmy boarding schools
yourinternatıngyour boarding schoolinternatlarıngyour boarding schools
his / herinternatıhis / her boarding schoolinternatlarıhis / her boarding schools
ourinternatıbızour boarding schoolinternatlarıbızour boarding schools
you all'sinternatığızyou all's boarding schoolinternatlarığızyou all's boarding schools
theirinternatlarıtheir boarding schoolinternatlarıtheir boarding schools

The overlap in the last rows is real, not a mistake: internatları can mean "his / her boarding schools", "their boarding school", or "their boarding schools" — context decides.