Translation of niederknien

This website helped me learn French. Although most of the users intend to learn either Spanish, German and English some users come here to learn French. I met a few people that helped me with it.
On Friday, I can send it from the US. But I would send it from here with EMS or even better with UPS, including delivery confirmation and tracking. From the US there will be no return address or tracking.
We added all tenses to the online conjugator. Please have a look. Please tell me if you like it, whether it is useful to you and whether you would integrate it into your homepage for language studies.