sapör

/sapør/

Cases

SingularPluralWhen to use it
nominativesapörthe sappersapörlethe sappersthe plain dictionary form — the doer of the sentence
genitivesapörnüthe sapper'ssapörlenithe sappers'the owner — whose it is
accusativesapörnüthe sapper (as the object)sapörlenithe sappers (as the object)a specific, known object — whom or what
dativesapörgeto the sappersapörlegeto the sappersdirection or recipient — to where, to whom
locativesapördeat / in the sappersapörledeat / in the sapperswhere it is; also having — mende bar, "I have it"
ablativesapördenfrom the sappersapörledenfrom the sapperswhere 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
mysapörümmy sappersapörlerimmy sappers
yoursapörüngyour sappersapörleringyour sappers
his / hersapörühis / her sappersapörlerihis / her sappers
oursapörübüzour sappersapörleribizour sappers
you all'ssapörügüzyou all's sappersapörlerigizyou all's sappers
theirsapörleritheir sappersapörleritheir sappers

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