sapın

/sapɯn/

Cases

SingularPluralWhen to use it
nominativesapınthe soapsapınlathe soapsthe plain dictionary form — the doer of the sentence
genitivesapınnıthe soap'ssapınlanıthe soaps'the owner — whose it is
accusativesapınnıthe soap (as the object)sapınlanıthe soaps (as the object)a specific, known object — whom or what
dativesapıngato the soapsapınlağato the soapsdirection or recipient — to where, to whom
locativesapındaat / in the soapsapınladaat / in the soapswhere it is; also having — mende bar, "I have it"
ablativesapındanfrom the soapsapınladanfrom the soapswhere 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
mysapınımmy soapsapınlarımmy soaps
yoursapınıngyour soapsapınlarıngyour soaps
his / hersapınıhis / her soapsapınlarıhis / her soaps
oursapınıbızour soapsapınlarıbızour soaps
you all'ssapınığızyou all's soapsapınlarığızyou all's soaps
theirsapınlarıtheir soapsapınlarıtheir soaps

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