8.3.3 The subjonctif after verbs of fear, insecurity, surprise


Examples  
  craindre = to be afraid, to fear  
  Je crains qu' il le lui ait écrit.
  I am afraid that he has written it to her.  
  Je crains qu' il le lui écrive.
  I am afraid that he writes it to her.  
  surprendre = to surprise  
  Il est surpris qu' un avion puisse voler.  
  He is surprised that a plane can fly.  
  être sûr(e) = to be sure  
  Elle n' est pas sûre qu' il soit fou.  
  She is not sure that he is crazy.