…’s

…’s

English:	German:
Ronny`s brother	Ronnys Bruder and Ronny`s Bruder (since spelling reform)

Singular:

Add `s:

Examples:
Mandy`s brother John plays football.
My teacher`s name is ...

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Plural:

Add the apostrophe ` to regular plural forms:

Examples:
The girls` room is very nice.
The Smiths` car is black.

Add `s to irregular plural forms:

Examples:
The children`s books are over there.
Men`s clothes are on the third floor.

If there are multiple nouns, add an `s only to the last noun:
Peter and John`s mother is a teacher.