frazeologizm

/frazeoloɡizm/

Cases

SingularPluralWhen to use it
nominativefrazeologizmthe phraseological unitfrazeologizmlethe phraseological unitsthe plain dictionary form — the doer of the sentence
genitivefrazeologizmnithe phraseological unit'sfrazeologizmlenithe phraseological units'the owner — whose it is
accusativefrazeologizmnithe phraseological unit (as the object)frazeologizmlenithe phraseological units (as the object)a specific, known object — whom or what
dativefrazeologizmgeto the phraseological unitfrazeologizmlegeto the phraseological unitsdirection or recipient — to where, to whom
locativefrazeologizmdeat / in the phraseological unitfrazeologizmledeat / in the phraseological unitswhere it is; also having — mende bar, "I have it"
ablativefrazeologizmdenfrom the phraseological unitfrazeologizmledenfrom the phraseological unitswhere 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
myfrazeologizmimmy phraseological unitfrazeologizmlerimmy phraseological units
yourfrazeologizmingyour phraseological unitfrazeologizmleringyour phraseological units
his / herfrazeologizmihis / her phraseological unitfrazeologizmlerihis / her phraseological units
ourfrazeologizmibizour phraseological unitfrazeologizmleribizour phraseological units
you all'sfrazeologizmigizyou all's phraseological unitfrazeologizmlerigizyou all's phraseological units
theirfrazeologizmleritheir phraseological unitfrazeologizmleritheir phraseological units

The overlap in the last rows is real, not a mistake: frazeologizmleri can mean "his / her phraseological units", "their phraseological unit", or "their phraseological units" — context decides.