geolog

/ɡeoloɡ/

Cases

SingularPluralWhen to use it
nominativegeologthe geologistgeologlathe geologiststhe plain dictionary form — the doer of the sentence
genitivegeolognuthe geologist'sgeologlanıthe geologists'the owner — whose it is
accusativegeolognuthe geologist (as the object)geologlanıthe geologists (as the object)a specific, known object — whom or what
dativegeologğato the geologistgeologlağato the geologistsdirection or recipient — to where, to whom
locativegeologdaat / in the geologistgeologladaat / in the geologistswhere it is; also having — mende bar, "I have it"
ablativegeologdanfrom the geologistgeologladanfrom the geologistswhere 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
mygeologummy geologistgeologlarımmy geologists
yourgeologungyour geologistgeologlarıngyour geologists
his / hergeologuhis / her geologistgeologlarıhis / her geologists
ourgeologubuzour geologistgeologlarıbızour geologists
you all'sgeologuğuzyou all's geologistgeologlarığızyou all's geologists
theirgeologlarıtheir geologistgeologlarıtheir geologists

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