for on Monday, I think the dydd would change to ddydd, correct me anyone if I'm wrong
It's something I learnt on the SSIW course (very good audio course) but cannot remember the exact context in which to use it
Right now the same sentence was marked as correct. Maybe the error was reported and is corrected now.
Maybe that is when the dydd changes to ddydd, I'm not completely sure, but I know that for something like that the word mutates, can anyone confirm this or know otherwise?