Learn German: Wir haben viel Spaß zusammen. - We have a lot of fun together.

While German uses dative pronouns for many feelings and states (like Mir ist kalt for "I am cold"), having fun works just like it does in English! You use the regular subject wir (we) and the verb haben (to have) followed by the noun Spaß (fun).

Why is it viel Spaß and not viele Spaß?

Spaß (fun) is an uncountable noun here, just like in English (you wouldn't say "many funs"). We use viel for uncountable things to mean "much" or "a lot of", and viele for countable things to mean "many".

What is the special letter at the end of Spaß?

That is the Eszett or sharp S (ß). It is a unique German letter that makes a sharp "s" sound, exactly like the "ss" in "hiss" or the "s" in "snake".

Why is Spaß capitalized in the middle of the sentence?

In German, every single noun (a person, place, thing, or concept) is capitalized, no matter where it appears in the sentence. Since Spaß (fun) is a noun, it must start with a capital letter.