diftong

/diftoŋ/

Cases

SingularPluralWhen to use it
nominativediftongthe diphthongdiftonglathe diphthongsthe plain dictionary form — the doer of the sentence
genitivediftongnuthe diphthong'sdiftonglanıthe diphthongs'the owner — whose it is
accusativediftongnuthe diphthong (as the object)diftonglanıthe diphthongs (as the object)a specific, known object — whom or what
dativediftongğato the diphthongdiftonglağato the diphthongsdirection or recipient — to where, to whom
locativediftongdaat / in the diphthongdiftongladaat / in the diphthongswhere it is; also having — mende bar, "I have it"
ablativediftongdanfrom the diphthongdiftongladanfrom the diphthongswhere 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
mydiftongummy diphthongdiftonglarımmy diphthongs
yourdiftongungyour diphthongdiftonglarıngyour diphthongs
his / herdiftonguhis / her diphthongdiftonglarıhis / her diphthongs
ourdiftongubuzour diphthongdiftonglarıbızour diphthongs
you all'sdiftonguğuzyou all's diphthongdiftonglarığızyou all's diphthongs
theirdiftonglarıtheir diphthongdiftonglarıtheir diphthongs

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