What is plural form for German?

The plural form of "German" depends on what you're referring to:

* For the nationality: Germans

* For the language: German (it's an uncountable noun)

* For the adjective: German (it remains unchanged in the plural)

For example:

* "The Germans are known for their engineering skills." (nationality)

* "I am learning German." (language)

* "These are German cars." (adjective)