Complex sentence: Colin had previously acquired Bellerbys College, a sixth-form college for international students, and in 1994 the company British Study Group was formed incorporating the two businesses, and added a third shareholder/director John Collyer.
Split into simpler sentences: Colin had previously acquired Bellerbys College, a sixth-form college for international students. In 1994 the company British Study Group was formed incorporating the two businesses and adding a third shareholder/director John Collyer.