User is able to build simple sentences and introduce him/herself.
User is able to understand frequently used question (location, employment, family, shopping, etc)
User can understand most of the context quite clear (leisure, work, education, etc.)
User can understand and talk about a wide range of complex topics (technique, enviroment or business)
User can understand any complex information and speak fluently and spontaneously without a dubitation.
User can speak very fluently and precisely as a native speaker, using different registers.