Verb conjugation of "operieren" in German

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.
I have even met someone who invited me to come and visit. It was an older couple who were renting apartments for language students. Well, actually there are agencies that offer the same as this couple, but I'm open.
Thank you for your email, everything was crystal clear. We should call each other, this would be the best way. Do you have the same opinion? But I think I need more help, for example: how do you conjugate swim?