Complex sentence: While he most likely at least began to learn to speak Portuguese as well as basic Catholicism on his 5-month voyage to Goa (via Mozambique), in Goa he was taught to read and write Portuguese by priests so he could enroll in the college.
Split into simpler sentences: While he most likely at least began to learn to speak Portuguese as well as basic Catholicism on his 5-month voyage to Goa (via Mozambique). In Goa he was taught to read and write Portuguese by priests so he could enroll in the college.