What is the test for establishing a pattern of criminal gang activity?

People v. Duran (2002) 97 Cal.App.4th 1448, 1457, 119 Cal.Rptr.2d 272 ; 186.22, subd. (f) (Section 186.22(f)).) A pattern of criminal gang activity is defined as gang members' individual or collective commission of, attempted commission of, conspiracy to commit, or solicitation of, sustained juvenile petition for, or conviction of two or more enumerated predicate offenses' during a statutorily defined time period. [Citations.] The predicate offenses must have been committed on separate occasions, or by two or more persons. [Citations.] (Duran, supra, 97 Cal.App.4th at p. 1457, 119 Cal.Rptr.2d 272 ; 186.22, subd. (e); People v. Loeun (1997) 17 Cal.4th 1, 910, 69 Cal.Rptr.2d 776, 947 P.2d 1313.)