Of course I am talking about someone learning English. If she knows exactly what that means and in a certain situation she wants to use it, just go for it. What is more important is to express herself, no doubt about it.
Someone dares to do something or has courage to do something...
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.