Verb conjugation of "beseitigen" in German

We would love to have you here as our guests! My niece Katja had also many diffculties with the new surroundings. She is really upset with this new change. How was your trip to Italy? I'll keep writing to you!
Anyway, once we arrived at the guest house the rules were explained: Washing my Jeans would be 2 dollars, a pair of socks 1 dollar and so on. I did not feel comfortable with these people.
We stayed there for a few hours observing the hugh ice blocks breaking off and falling into the icy waters leaving a water splash of over 100 meters. Each splash was followed by a dull thunder.