I have written a short intro on how to use a corpus to help you with English collocations (eg. if I want to know, which preposition follows the word interested, eg. in the sentence I am interested ________ football.).
If you are looking for online English exercises and other things (to practise your English as well as to learn new things), make use of this page:
There you can find some links to some interesting websites.
I have been a JŠ ROSA teacher since 2004. I teach mainly English, sometimes also French, German or Spanish.
I've got CPE and SJZ in English and DELF B1 in French.
Apart from being a teacher, I study programming at MFF UK.