Complex sentence: From 1984 to 1991 he attended Tasker Milward School, a former boys grammar school in Haverfordwest that had merged with the local girls school in 1978 and is now a voluntary controlled school.
Split into simpler sentences: From 1984 to 1991 he attended Tasker Milward School, a former boys grammar school in Haverfordwest. The school merged with the local girls school in 1978 and is now a voluntary controlled school.