The document discusses the use of MAKE, ALLOW, and LET to talk about obligation, permission, and prohibition. It states that MAKE expresses obligation, as in "My boss makes me work very hard." LET and ALLOW express permission, as in "He let me read the letter" and "Our Science teacher allows us to ask questions." Prohibition is expressed using NOT LET and NOT ALLOW, as in "My boss doesn't let me leave until five o'clock" and "They don't allow dogs to come into the house."