Young- younger- the youngest
late - later - the latest / the least
big - bigger - the biggest
talented - more talented - the most talented
famous - more famous - the most famous
long - longer- the longest
many - more - the most
good - better - the best
little - less - the least
carefully - more carefully - the most carefully
bad - worse- the worst
busy - busier- the busiest
difficult - more difficult - the most difficult
old - older- the oldest или если речь идет о родственниках - old - elder - the eldest