Questions & Answers about Das Gemeinsame in unserer Gruppe macht mir Spaß.
Das Gemeinsame is an adjective (gemeinsam) that has been turned into a noun. This is called a nominalized adjective (in German: substantiviertes Adjektiv).
- Base adjective: gemeinsam = “shared, common, mutual”
- Nominalized: das Gemeinsame = “that which is shared / the things we have in common”
In German, whenever an adjective is used as a noun, it is:
- Capitalized: das Gemeinsame
- Given an article: das, ein, dieses, etc.
- Given an adjective ending: here, -e in Gemeinsame
So we’re literally saying “The shared [thing(s)] in our group is fun for me,” i.e., “What we have in common in our group is fun for me.”