Whether or not there should be an att always depends on the first verb (or of course on what kind of construction it is).
I know the -s form from the Danish course, but why is it used here? It seems to be neither reflexive nor passive.
:/ Always the same mistake " vi - you " "ni - we" , I learned Esperanto first :/
I thought in subjunctive in English you can omit the "s" in the third person singular, I wrote.... we hope that he come.... and it is not accepted here.
The subjunctive isn't used after 'to hope'. It is used after 'to be important that', 'to be essential that', and so on.
So, you say "it is important/essential that he come".