Verb conjugation of "nähern" in German

I know it is a little confusing. The problem is if the original word is a conjugated verb: I skipped them until now. I did not write it in my explanations. It actually must be skipped. Thanks for noticing.
Today the temperature rose above 30 degrees Celsius and we don't have an air condition at the office which means that working is almost impossible. Rick told all his employees to go home or to the beach and work in the evening.
I once had a lesson with a private teacher, but unfortunately she could not come regularly. She was always sick, then I have visited a school in Andalusia, which was worthless, since we talked only German.