Source: http://www.unine.ch/files/live/sites/clc/files/Conf%C3%A9rences%202019/Le%20g%C3%A9rondif%20en%20fran%C3%A7ais%20et%20les%20structures%20correspondantes%20Ella%20Mich%C3%A8le%20Wern%255B1%255D.pdf