Verb conjugation of "piquer" in French

This is just a quick confirmation that Hans George accepted to study with you on the English-German tandem option. Please be helpful to other users and keep your conversation public. Both parties need to agree on that.
I have a few other short sentences by tomorrow. How can I pay for all these little translations? If I remember correctly I made also a small contribution through the channel last year... But I don't think you should charge for these ones.
I teach at the university of natural sciences. I have studied at the ETH in Zurich. At that time I started learning Spanish and I found Vocabulix. Since then I'm using it regularly with joy.