telegraf

/teleɡraf/

Cases

SingularPluralWhen to use it
nominativetelegrafthe telegraphtelegraflathe telegraphsthe plain dictionary form — the doer of the sentence
genitivetelegrafnıthe telegraph'stelegraflanıthe telegraphs'the owner — whose it is
accusativetelegrafnıthe telegraph (as the object)telegraflanıthe telegraphs (as the object)a specific, known object — whom or what
dativetelegrafhato the telegraphtelegraflağato the telegraphsdirection or recipient — to where, to whom
locativetelegrafdaat / in the telegraphtelegrafladaat / in the telegraphswhere it is; also having — mende bar, "I have it"
ablativetelegrafdanfrom the telegraphtelegrafladanfrom the telegraphswhere 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
mytelegrafımmy telegraphtelegraflarımmy telegraphs
yourtelegrafıngyour telegraphtelegraflarıngyour telegraphs
his / hertelegrafıhis / her telegraphtelegraflarıhis / her telegraphs
ourtelegrafıbızour telegraphtelegraflarıbızour telegraphs
you all'stelegrafığızyou all's telegraphtelegraflarığızyou all's telegraphs
theirtelegraflarıtheir telegraphtelegraflarıtheir telegraphs

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