Is it true that some Eastern Catholic parishes use English in their liturgy now? Is this allowed?
In the United States many Eastern Catholic parishes celebrate the Liturgy in English. My own Church, the Byzantine-Ruthenian Catholic Church, celebrates Divine Liturgy almost exclusively in English in the U.S. This is because we are very Americanized, and have members from numerous racial and ethnic backgrounds. The Ukrainian Catholics, in contrast, are still very close to their immigrant roots. They are still receiving new waves of immigrants on a regular basis. Thus, they use Ukrainian in most of their Divine Liturgies because it is what the people are most comfortable with.
The ancient tradition of the Eastern Churches is for Liturgy to be celebrated in the language of the people. Hence, Byzantine Catholics were actually celebrating the Divine Liturgy in English here in America, while Roman Catholics were still using Latin.