que je me trompasse, _that I might deceive myself_.
que tu te trompasses, _that thou mightst deceive thyself_.
qu'il se trompât, _that he might deceive himself_.
qu'on se trompât, _that one might deceive himself_.
que nous nous trompassions, _that we might deceive ourselves_.
que vous vous trompassiez, _that you might deceive yourselves_.
qu'ils se trompassent, _that they might deceive themselves_.