A person commits an offense if, with the intent to establish, maintain, or participate in a combination or in the profits of a combination, he commits or conspires to commit one or more enumerated offenses, including burglary. "Combination" is defined as "three or more persons who collaborate in carrying on criminal activities." TEX. PENAL CODE 71.01(a). To establish participation in a combination, the State must prove "that the appellant intended to 'establish, maintain, or participate in' a group of three or more, in which the members intend to work together in a continuing course of criminal activities." Nguyen v. State, 1 S.W.3d 694, 697 (Tex. Crim. App. 1999). These activities need not, individually, be criminal offenses. Id.