is a comma splice a run on sentence or fragment
âº A comma splice occurs when only a comma separates two independent sentences. âº A run-on (or fused) sentence occurs when no punctuation at all separates independent sentences.Letâs start with two simple sentences: Tony is dishonest.He steals hubcaps for a living. A comma splice occurs when only a comma separates two independent sentences. âº A run-on (or fused) sentence occurs when no punctuation at all separates independent sentences.