geologiya

/ɡeoloɡija/

Cases

SingularPluralWhen to use it
nominativegeologiyathe geologygeologiyalathe geologiesthe plain dictionary form — the doer of the sentence
genitivegeologiyanıthe geology'sgeologiyalanıthe geologies'the owner — whose it is
accusativegeologiyanıthe geology (as the object)geologiyalanıthe geologies (as the object)a specific, known object — whom or what
dativegeologiyağato the geologygeologiyalağato the geologiesdirection or recipient — to where, to whom
locativegeologiyadaat / in the geologygeologiyaladaat / in the geologieswhere it is; also having — mende bar, "I have it"
ablativegeologiyadanfrom the geologygeologiyaladanfrom the geologieswhere 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
mygeologiyammy geologygeologiyalarımmy geologies
yourgeologiyangyour geologygeologiyalarıngyour geologies
his / hergeologiyasıhis / her geologygeologiyalarıhis / her geologies
ourgeologiyabızour geologygeologiyalarıbızour geologies
you all'sgeologiyağızyou all's geologygeologiyalarığızyou all's geologies
theirgeologiyalarıtheir geologygeologiyalarıtheir geologies

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