The four patterns differ either in relative number of terms or in how pairs are ordered.
ClassSubjectsModels
TaswiyahSeveralOne
JamʿOneSeveral
MalfufSeveral grouped firstSeveral grouped second
MafruqEach with its pairEach with its pair
For taswiyah and jamʿ, count the two kinds of terms. For malfuf and mafruq, trace their verbal arrangement.