jek

/dʒek/ · plural jekle

Cases and owners

Singular — cases of jek, plain and with an owner
Case—plainmenimyseniyouranıhis / herbiznioursizniyou all'salanıtheir
Nominativejekthe evil spiritjegimmy evil spiritjegiŋyour evil spiritjegihis evil spiritjegibizour evil spiritjegigizyou all's evil spiritjekleritheir evil spirits
Genitivejeknithe evil spirit'sjegimimy evil spirit'sjegiŋiyour evil spirit'sjeginihis evil spirit'sjegibizniour evil spirit'sjegigizniyou all's evil spirit'sjeklerinitheir evil spirits'
Accusativejeknithe evil spirit (as the object)jegimimy evil spirit (as the object)jegiŋiyour evil spirit (as the object)jeginhis evil spirit (as the object)jegibizniour evil spirit (as the object)jegigizniyou all's evil spirit (as the object)jeklerintheir evil spirits (as the object)
Dativejekgeto the evil spiritjegimeto my evil spiritjegiŋeto your evil spiritjegineto his evil spiritjegibizgeto our evil spiritjegigizgeto you all's evil spiritjeklerineto their evil spirits
Locativejekdein / at the evil spiritjegimdein / at my evil spiritjegiŋdein / at your evil spiritjegindein / at his evil spiritjegibizdein / at our evil spiritjegigizdein / at you all's evil spiritjeklerindein / at their evil spirits
Ablativejekdenfrom the evil spiritjegimdenfrom my evil spiritjegiŋdenfrom your evil spiritjegindenfrom his evil spiritjegibizdenfrom our evil spiritjegigizdenfrom you all's evil spiritjeklerindenfrom their evil spirits
Plural — cases of jek, plain and with an owner
Case—plainmenimyseniyouranıhis / herbiznioursizniyou all'salanıtheir
Nominativejeklethe evil spiritsjeklerimmy evil spiritsjekleriŋyour evil spiritsjeklerihis evil spiritsjekleribizour evil spiritsjeklerigizyou all's evil spiritsjekleritheir evil spirits
Genitivejeklenithe evil spirits'jeklerimimy evil spirits'jekleriŋiyour evil spirits'jeklerinihis evil spirits'jekleribizniour evil spirits'jeklerigizniyou all's evil spirits'jeklerinitheir evil spirits'
Accusativejeklenithe evil spirits (as the object)jeklerimimy evil spirits (as the object)jekleriŋiyour evil spirits (as the object)jeklerinhis evil spirits (as the object)jekleribizniour evil spirits (as the object)jeklerigizniyou all's evil spirits (as the object)jeklerintheir evil spirits (as the object)
Dativejeklegeto the evil spiritsjeklerimeto my evil spiritsjekleriŋeto your evil spiritsjeklerineto his evil spiritsjekleribizgeto our evil spiritsjeklerigizgeto you all's evil spiritsjeklerineto their evil spirits
Locativejekledein / at the evil spiritsjeklerimdein / at my evil spiritsjekleriŋdein / at your evil spiritsjeklerindein / at his evil spiritsjekleribizdein / at our evil spiritsjeklerigizdein / at you all's evil spiritsjeklerindein / at their evil spirits
Ablativejekledenfrom the evil spiritsjeklerimdenfrom my evil spiritsjekleriŋdenfrom your evil spiritsjeklerindenfrom his evil spiritsjekleribizdenfrom our evil spiritsjeklerigizdenfrom you all's evil spiritsjeklerindenfrom their evil spirits

The overlap in the last rows is real, not a mistake: jekleri can mean "his / her evil spirits", "their evil spirit", or "their evil spirits" — context decides.

Belonging to jek — the evil spirit's one
Caseone thing, one ownerseveral things, one ownerone thing, several ownersseveral things, several owners
Nominativejeknikithe evil spirit's onejeknikilethe evil spirit's onesjeklenikithe evil spirits' onejeklenikilethe evil spirits' ones
Genitivejeknikiniof the evil spirit's onejeknikileniof the evil spirit's onesjeklenikiniof the evil spirits' onejeklenikileniof the evil spirits' ones
Accusativejeknikinthe evil spirit's one (as the object)jeknikilenithe evil spirit's ones (as the object)jeklenikinthe evil spirits' one (as the object)jeklenikilenithe evil spirits' ones (as the object)
Dativejeknikineto the evil spirit's onejeknikilegeto the evil spirit's onesjeklenikineto the evil spirits' onejeklenikilegeto the evil spirits' ones
Locativejeknikindein / at the evil spirit's onejeknikiledein / at the evil spirit's onesjeklenikindein / at the evil spirits' onejeklenikiledein / at the evil spirits' ones
Ablativejeknikindenfrom the evil spirit's onejeknikiledenfrom the evil spirit's onesjeklenikindenfrom the evil spirits' onejeklenikiledenfrom the evil spirits' ones

The endings are the same ones the pronouns wear — that page explains when each case is used.