Verb conjugation of "claquer" in French

Many of our friends would love to do the same but do not have the courage to think outside of the box. For us it is a privilege to be able to go whenever we want. Naturally, it comes at the expense of a high salary.
Vocabulix includes a vocabulary builder for many languages, Spanish and German are just the ones that have the predefined sections. Generally speaking you can invent your own set of expressions and drill them on the speed train.
I am back in Switzerland, and the weather makes me crazy. Shall I write you on Vocabulix or to your regular email address? I have been working 20 years as an employee for a German company.