Verb conjugation of "deduce" in English

It means a lot to me to participate and meet other people in this Internet forum. I'll know later if I can move my appointment in order to get together with our visitors from Canada.
On the frozen lake, you can skate, but I would never dare it because it is far too dangerous. Who knows how thick the ice really is and how accurate the measurements are. It can break.
I live in Cataluna in eastern Spain. I have learned in a language school in Berlin but unfortunately only for a short time. I am a waitress by profession and looking for a new job in my village.