$\text{1. Beef is more expensive than chicken (cheap >< expensive)}$
$\text{2. Listening to conversations in English is harder than speaking English (easy >< hard)}$
$\text{3. I've never driven any faster moving car than this one (fastest = no faster}$
$\text{4. She has never had a more delicious lunch than this one (most delicious = no more delicous}$
$\text{5. No mountain in the world is higher than Mount Everest (highest = no higher}$