Contrast Clauses -

This reduction is not possible with whereas because whereas requires two explicit clauses: Whereas brilliant, he lacks social skills (incorrect).

Moving beyond simple sentences helps you achieve a higher level of English proficiency, such as that required for the IELTS Writing Task . Practice Tip contrast clauses

Note: This paper is a pedagogical summary and not intended for publication in a peer-reviewed journal. This reduction is not possible with whereas because

"She continued working although she was tired." 2. Punctuation contrast clauses