everybody是单数还是复数?

everybody作为主语是单数还是复数? Everybody究竟是单数还是复数 everybody后面要加单数还是复数? "everybody"应该看作单数还是复数? everything,everybody后加单数还是复数? everybody's dreams,everybody是单数,这里却表复数 the young,someone,everybody,nobody这些词后面动词分别是单数还是复数形式? everybody是单数还是复数后面的feel是否要加s? Everyone ,everybody,everything表示单数还是复数?谓语动词单数还是复数 family是单数还是复数 school是单数还是复数? cookie是单数还是复数