Verb conjugation of "tâter" in French

I am asking you to give me a reply as soon as possible so that we can proceed. Have you ever tested the new version? Many users are waiting for it, and are sending me lots of emails about it.
According to the user's success and failures in the placement test will give us the information where to start the drills for each users. Please note that some general parameters that are not user specific may also be involved in the decision engine.
Thank you for your message. Is it hard to get a visa for Germany? I am a nurse for children in a children's hospital in Chicago, USA. It is fascinating and exhausting at the same time.