Old - older - the oldest; frustrating - more frustrating - the most frustrating; light - lighter - the lightest; smart - smarter - the smartest; interesting - more interesting - the most interesting; tasty - tastier - the tastiest; young - younger - the youngest; cold - colder - the coldest; warm - warmer - the warmest; good - better - the best; big - bigger - the biggest; small - smaller - the smallest; tall - taller - the tallest; fine - finer - the finest; bad - worse - the worst; thin - thinner - the thinnest; fat - fatter - the fattest; hot - hotter - the hottest; strong - stronger - the strongest; kind - kinder - the kindest; bright - brighter - the brightest; favourite - more favourite - the most favourite; beautiful - more beautiful - the most beautiful.
