fast - faster - the fastest
slow - slower - the slowest
expensive - more expensive - the most expensive
cheap - cheaper - the cheapest
dangerous - more dangerous - the most dangerous
safe - safer - the safest
boring - more boring - the most boring
interesting - more interesting - the most interesting
exciting - more exciting - the most excitin
frightening - more frightening - the most frightening
good - better - the best
bad - worse - the worst
funny - funnier - the funniest
popular - more popular - the most popular
easy - easier - the easiest
difficult - more difficult - the most difficult
