How long do the courses take?

This depends on the type, level and the language of the course:

Conversation courses on weekdays: 4 weeks
Conversation courses on Saturdays: 6 weeks

English group courses level A1: 6 weeks
English group courses level A2-C1: 7 weeks

Dutch group courses level A1: 7 weeks
Dutch group courses level A2-C1: 5 weeks (one part)

Spanish group courses: 10 weeks (one part)