Verified answer

happy – happily – more happily than – the most happily

healthy – healthily – more healthily than – the most healthily

fluent – fluently – more fluently than – the most fluently

hard – hard – harder than – the hardest

early – early – earlier than – the earliest

late – lately – later than – the latest

good – well – better than – the best

bad – badly – worse than – the worst