Complex sentence: After separated from, the French Coptic Orthodox Church (ÉCOF) agreed to receive some groups into full communion in 2000; and were permitted to use of their existing Gallican Mass and the Daily Office (Hours) of the ancient Western Church.
Split into simpler sentences: After separated from, the French Coptic Orthodox Church (ÉCOF) agreed to receive some groups into full communion in 2000. These groups were permitted to use of their existing Gallican Mass and the Daily Office (Hours) of the ancient Western Church.