Verb conjugation of "box" in English

Great pictures. This looks very promising! At what time do you need to be back on Monday? I may have to return early on Tuesday as well, because my daughter's and my son's birthday are on the same date.
Was that all? I was sure that I had a lot more mistakes, because I did not know how to express myself properly. Maybe I am a natural born talent. I am just kidding. Let me know if you need something else.
Have you ever visited the U.S. before and if so, where have you been in the U.S.? I've been travelling in California, it was very amazing. We have traveled by car. Here are my corrections.