How do you ask a woman out on a date in German? I.e. "would you like to go out sometime?"
Your example literally translated it is "Willst du irgendwann mal mit mir ausgehen?" You could also say: "Wollen wir einmal etwas trinken gehen?", which is "Shall we have a drink one-time?". Or, if you don't have a drink in mind, but something else: "Wollen wir mal etwas miteinander unternehmen?", which is "Would you be up for doing something together sometime?". Good luck!