Complex sentence: The issue of World Englishes was first raised in 1978, to examine concepts of regional Englishes globally, such as appropriateness, comprehensibility and interpretability as pragmatic factors determining the use of English as an international and intra-national language.
Split into simpler sentences: The issue of World Englishes was first raised in 1978 to examine concepts of regional Englishes globally. Pragmatic factors such as appropriateness, comprehensibility and interpretability justified the use of English as an international and intra-national language.