Verb conjugation of "favoriser" in French

Please take into account, that on May 10 and 11 there are holidays in the United States and that we do not work on Saturday. This will leave only the 15th, 16th and 17th for a company visit.
The idea is to use the sourcing to get as much information as possible about learning abilities and disabilities in average. This way we can determine and forecast best practices for language learners based on some parameters.
Today I have a lot of time because I've just returned from a 3 day vacation. For how long have you been teaching German? For about 3 years I have been studying Spanish mostly alone, with books and stuff.