punktir

/punktir/

Cases

SingularPluralWhen to use it
nominativepunktirthe linepunktirlethe linesthe plain dictionary form — the doer of the sentence
genitivepunktirnithe line'spunktirlenithe lines'the owner — whose it is
accusativepunktirnithe line (as the object)punktirlenithe lines (as the object)a specific, known object — whom or what
dativepunktirgeto the linepunktirlegeto the linesdirection or recipient — to where, to whom
locativepunktirdeat / in the linepunktirledeat / in the lineswhere it is; also having — mende bar, "I have it"
ablativepunktirdenfrom the linepunktirledenfrom the lineswhere 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
mypunktirimmy linepunktirlerimmy lines
yourpunktiringyour linepunktirleringyour lines
his / herpunktirihis / her linepunktirlerihis / her lines
ourpunktiribizour linepunktirleribizour lines
you all'spunktirigizyou all's linepunktirlerigizyou all's lines
theirpunktirleritheir linepunktirleritheir lines

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