jetijıllıq

/dʒetidʒɯllɯq/

Cases

SingularPluralWhen to use it
nominativejetijıllıqthe seven-year schooljetijıllıqlathe seven-year schoolsthe plain dictionary form — the doer of the sentence
genitivejetijıllıqnıthe seven-year school'sjetijıllıqlanıthe seven-year schools'the owner — whose it is
accusativejetijıllıqnıthe seven-year school (as the object)jetijıllıqlanıthe seven-year schools (as the object)a specific, known object — whom or what
dativejetijıllıqğato the seven-year schooljetijıllıqlağato the seven-year schoolsdirection or recipient — to where, to whom
locativejetijıllıqdaat / in the seven-year schooljetijıllıqladaat / in the seven-year schoolswhere it is; also having — mende bar, "I have it"
ablativejetijıllıqdanfrom the seven-year schooljetijıllıqladanfrom the seven-year 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
myjetijıllığımmy seven-year schooljetijıllıqlarımmy seven-year schools
yourjetijıllığıngyour seven-year schooljetijıllıqlarıngyour seven-year schools
his / herjetijıllığıhis / her seven-year schooljetijıllıqlarıhis / her seven-year schools
ourjetijıllığıbızour seven-year schooljetijıllıqlarıbızour seven-year schools
you all'sjetijıllığığızyou all's seven-year schooljetijıllıqlarığızyou all's seven-year schools
theirjetijıllıqlarıtheir seven-year schooljetijıllıqlarıtheir seven-year schools

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