Write three forms of comparison of adjectives old, strong, happy, modern, important, quite, clever, narrow, difficult, good, far, sad, grey, productive, many, slow, unusual

Old-older-the oldest
srong-sronger-the strongest
happy-happier-the happiest
modern- moderner-the modenerest
important-more inportnt-the most importnt
quite-quiter-the quitest
clever-cleverer- the cleverest
narrow-more narrow-the most narrows
difficult-more difficult-the most difficult
good-beter- the best

Old-older-the oldest old-elder-the eldest
Strong stronger the strongest
Happy happier the happiest
Modern more modern the most modern
Important more important the most important
Quite more quite most quite
Clever cleverer the cleverest
Narrow narrower the narrowest
Difficult more difficult the most difficult
Good better the best
Far farther the farthest far- furher - the furthest
Sad- sadder- the saddest
Grey- greyer- the greyest
Productive- more productive - the most productive
Many more most
Slow slower the slowest