Complex sentence: Subjects vary slightly between the two certificates however English, Irish and Maths are mandatory in both (with the exception of Irish in certain situations) these three subjects are offered at Higher, Ordinary and Foundation Level (except Leaving Certificate English).
Split into simpler sentences: Subjects vary slightly between the two certificates however English, Irish, and Maths are mandatory in both-with the exception of Irish in certain situations. These three subjects are offered at Higher, Ordinary, and Foundation Level (except Leaving Certificate English).