Screaming all the way, the roller coaster thrilled us. The preceding example implies the roller coaster was screaming, resulting in a thrill for the riders. While most languages feature double negatives, English does not. Unfortunately, double negatives are featured in daily conversation and popular culture. He don't know nothing about the robbery.
Fused sentences are two independent clauses joined without punctuation.
A sentence fragment is a dependent clause or phrase used by a writer as a complete sentence. The Consensus .