go in for(в конкурсе, состязании • I did a bit of diving but I never went in for any major competitions. • Well if you recall he was going in for a competition at Donnington for the loudest sound system.)
be in on it(в чём-л. незаконном • Canada Border Service Agency discloses at the Port of Vancouver, the largest in the nation, its seizures of stolen cars numbered only a handful while thefts soared to 70,000/year: "There are areas for improvement." "Room for improvement is an understatement. If like other ports border services has a handful of parking spots for retrieved vehicles – so they stop searching when the designated spots are full." "Pretty much have to be in on it for this level of incompetence." "I’m guessing the car-theft rings have inside help at the port."x.comART Vancouver)
participates(связь между элементом модели и отношением или его воплощением. Например, класс участвует в ассоциации, роль классификатора – в кооперации ssn)