(basic, comparative, superlative)
fat, fatter, the fattest
fast, faster, the fastest
heavy, heavier, the heaviest
noisy, noiser, the noisiest
convenient, more convenient, the most convenient
interesting, more interesting, the most interesting
fat fatter fattest
fast faster fastest
heavy heavier heaviest
noisy noisier noisiest
convenient more convenient the most convenient
interesting more interesting the most interesting
其實你見到more/most就知個adj本身係唔駛變ga la
會咁係因為個adj有3個音節或以上呀=] (convenient)