Ich spreche kein Deutsch. (Lit. I speak no German). Or: Ich kann kein Deutsch (sprechen). I can`t (speak) German. You don`t have to say "speak", as it is commonly understood, what you are referring to. Hence, to ask "do you speak English, one can simply say "can you English?" or "kannst du Englisch?"
I don't speak English translates as Ich spreche kein Englisch
Does he speak German = Spricht er Deutsch
In Germany you speak usually the German language.
No she doesn't speak German.
How do you speak German = Wie spricht man Deutsch
They are German so they speak German to each other.
People in Vienna speak Viennese German.
french and english... maybe german i dont know I got these from my grandma and my best friends
No, sprechen means speak in German.
Does he speak German = Spricht er Deutsch
There are gnomes that speak German fluently because they are german. Or they simply studied it.
"Do you speak in German" is "Sprechen Sie Deutsch?" (formal) or "Sprichst du Deutsch?" (informal) in German.
German is not the official language in Estonia, but some Estonians surely know how to speak German.