• heavy – heavier (than)
• dangerous – more dangerous (than)
• big – bigger (than)
• ugly – uglier (than)
• slow – slower (than)
• nice – nicer (than)
• comfortable – more comfortable (than)
• expensive – more expensive (than)
• good – better (than)
• bad – worse (than)
• little – less (than)
• many – more (than)
• weak – weaker (than)

Формы слов в Comparative