Translation of verbürgen

Today we have what we call 'hair dryer wind' (south wind from over the Alps), and it is around 30 degrees in Aarau. In some places even 31. Many people have headaches because of the weather.
The easiest way of writing sentences in Spanish and English is to communicate with other people by email or by chat. I found the different time forms quite in Spanish very confusing at the beginning and it was the most difficult part.
Learning a new language is never easy, especially the first foreign language. Unfortunately, it's a bit difficult for me as well. But the vocabulary exercises here are really good.