Verb conjugation of "opérer" in French

This is just a quick confirmation that Hans George accepted to study with you on the English-German tandem option. Please be helpful to other users and keep your conversation public. Both parties need to agree on that.
Until now I have tried the copy the mode of operation of Mike in class. Even the homework that they gave us do not match the exercise that we tried yesterday. I could not fulfill this task anyway.
Since when have you been learning Spanish? My children are not on Vocabulix, they are too small for it. We have no time for the normal day activities, and we are always on the move with the children.