CEFR Level B1 means:
- you can understand the main points of clear standard input on familiar matters regularly encountered in work, school, leisure, etc.
- you can deal with most situations likely to arise whilst travelling in an area where the language is spoken.
- you can produce simple connected text on topics, which are familiar, or of personal interest.
- you can describe experiences and events, dreams, hopes & ambitions and briefly give reasons and explanations for opinions and plans.