So that/in order to Hi All! What’s the difference between "so that" and "in order to"? I know quite well when to use "in order to", on the other hand I don't know when "so that" is correct in a sentence. Do they sometimes are interchangeable? Do sometimes they are interchangeable? Do they are sometimes interchangeable? My examples: I work in order to earn money. I work so that to earn money. I work so that I can earn money. I earn money in order to buy a new car. I earn money so that I can buy a new car. I earn money so that to buy a new car. I sign up for Facebook in order to contact my friends. I sign up for Facebook so that I can contact my friends. I sign up for Facebook so that to contact my friends. I do exercises in order to keep fit. I do exercises so that I keep fit I do exercise so that to keep fit. I attend an English course in order to improve my English. I attend an English course so that to improve my English. I attend an English course so that I can improve my English. She closed the door, so that she could study quietly. She closed the door in order to no longer heard (any/some?) noise. She close the door, so that she won’t be disturbed anymore. I come to school so that I can improve my English. I come to school in order to improve my English. I learn English so that I can speak it well. I learn English so that to speak it well. I learn English in order to speak it well. I read it carefully, in order to find any/some (both of them are ok, aren’t they?) mistakes. I read it carefully, so that I find any/some mistakes. ----- Thank you and Merry Christmas! Simone