Complex sentence: The three infantry formations of the British I Corps were deployed with the 6th Airborne Division on the left nearest the coast, in the centre was the 49th Division and on the right the 51st Division.
Split into simpler sentences: The three infantry formations of the British I Corps were deployed with the 6th Airborne Division on the left, nearest the coast. In the centre was the 49th Division and on the right the 51st Division.