I have been learning English with various teachers for many years. Greet has taught me the most. I have some mistakes in the English language in which I persist. Greet tries to unlearn this. And she succeeds. Sometimes it takes a long time and she has to try different ways. But she keeps looking until she finds a way I want to accept.
Professionally, the language of use is becoming more and more English. I now have to prepare budget requests, calls for tenders, orders and emails in English. The structure of a text is important and it is best to adjust it according to the result you want to achieve. Greet taught me that and I have benefited a lot from it. Greet adapts and changes the course material according to the needs.