Complex sentence: Once, Father Ted tried to improve his speech with some success; he learned the phrases "Yes!" and "That would be an ecumenical matter!" so that he could communicate at a basic level with three bishops that were guests on Craggy Island.
Split into simpler sentences: Once, Father Ted tried to improve his speech with some success. He learned the phrases "Yes!" and "That would be an ecumenical matter!" so that he could communicate at a basic level with three bishops that were guests on Craggy Island.