This can be stated in active form. Alternate translation: "Moses and Aaron did not count the men who were descended from Levi" (See: [[rc://en/ta/man/translate/figs-activepassive]])
In some languages this is a passive verb. If needed, this can be written differently. Alternate translation: "who were from the tribe of Levi" (See: [[rc://en/ta/man/translate/figs-activepassive]])