refleks

/refleks/

Cases

SingularPluralWhen to use it
nominativerefleksthe reflexreflekslethe reflexesthe plain dictionary form — the doer of the sentence
genitiverefleksnithe reflex'sreflekslenithe reflexes'the owner — whose it is
accusativerefleksnithe reflex (as the object)reflekslenithe reflexes (as the object)a specific, known object — whom or what
dativerefleksgeto the reflexreflekslegeto the reflexesdirection or recipient — to where, to whom
locativerefleksdeat / in the reflexrefleksledeat / in the reflexeswhere it is; also having — mende bar, "I have it"
ablativerefleksdenfrom the reflexrefleksledenfrom the reflexeswhere 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
myrefleksimmy reflexreflekslerimmy reflexes
yourrefleksingyour reflexrefleksleringyour reflexes
his / herrefleksihis / her reflexreflekslerihis / her reflexes
ourrefleksibizour reflexrefleksleribizour reflexes
you all'srefleksigizyou all's reflexreflekslerigizyou all's reflexes
theirrefleksleritheir reflexrefleksleritheir reflexes

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