comparative&superlative adjective

cheaper, the cheapest
more colourful, the most colourful
more attractive, the most attractive
more expensive, the most expensive
more difficult, the most difficult
newer, the newest
better, the best
nicer, the nicest
more intelligent, the most intelligent
more spacious, the most spacious

cheap,cheaper, the cheapest
colourful, more colourful, the most colourful
attractive,more attractive, the most attractive
expensive,more expensive, the most expensive
difficult, more difficult, the most difficult
new, newer, the newest
good , better, the best
nice, nicer, the nicest
intelligent ,more intelligent, the most intelligent
spacious, more spacious, the most spacious