bejen

/bedʒen/

Cases

SingularPluralWhen to use it
nominativebejenthe pierbejenlethe piersthe plain dictionary form — the doer of the sentence
genitivebejennithe pier'sbejenlenithe piers'the owner — whose it is
accusativebejennithe pier (as the object)bejenlenithe piers (as the object)a specific, known object — whom or what
dativebejengeto the pierbejenlegeto the piersdirection or recipient — to where, to whom
locativebejendeat / in the pierbejenledeat / in the pierswhere it is; also having — mende bar, "I have it"
ablativebejendenfrom the pierbejenledenfrom the pierswhere 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
mybejenimmy pierbejenlerimmy piers
yourbejeningyour pierbejenleringyour piers
his / herbejenihis / her pierbejenlerihis / her piers
ourbejenibizour pierbejenleribizour piers
you all'sbejenigizyou all's pierbejenlerigizyou all's piers
theirbejenleritheir pierbejenleritheir piers

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