jaşko

/dʒaʃko/

Cases

SingularPluralWhen to use it
nominativejaşkothe ladjaşkolathe ladsthe plain dictionary form — the doer of the sentence
genitivejaşkonuthe lad'sjaşkolanıthe lads'the owner — whose it is
accusativejaşkonuthe lad (as the object)jaşkolanıthe lads (as the object)a specific, known object — whom or what
dativejaşkoğato the ladjaşkolağato the ladsdirection or recipient — to where, to whom
locativejaşkodaat / in the ladjaşkoladaat / in the ladswhere it is; also having — mende bar, "I have it"
ablativejaşkodanfrom the ladjaşkoladanfrom the ladswhere 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
myjaşkommy ladjaşkolarımmy lads
yourjaşkongyour ladjaşkolarıngyour lads
his / herjaşkosuhis / her ladjaşkolarıhis / her lads
ourjaşkobuzour ladjaşkolarıbızour lads
you all'sjaşkoğuzyou all's ladjaşkolarığızyou all's lads
theirjaşkolarıtheir ladjaşkolarıtheir lads

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