Verb conjugation of "administer" in English

On Thursday I have an appointment. If there is no other way, I'll move it. Can you meet on Tuesday, April 11, anyway? I suggest 10.30 in the morning, but I'm fairly flexible, so noon is good too.
Yes, my Spanish is much better than your German, but it is not true that I do not want to learn with you. I think this is not an issue. Where do you come from in the U.S.? East or West coast?
I live in Cataluna in eastern Spain. I have learned in a language school in Berlin but unfortunately only for a short time. I am a waitress by profession and looking for a new job in my village.