Here's the completed chart with the comparatives and superlatives:

1. Complete the chart with the comparatives and superlatives:

| Adjective | Comparative | Superlative |
|---------------|--------------------------|--------------------------|
| long | longer than | the longest |
| fast | faster than | the fastest |
| pretty | prettier than | the prettiest |
| beautiful | more beautiful than | the most beautiful |
| ugly | uglier than | the ugliest |
| thin | thinner than | the thinnest |
| fashionable | more fashionable than | the most fashionable |

2. Write the comparative:

a. old → older
b. strong → stronger
c. happy → happier
d. modern → more modern
e. important → more important
f. good → better
g. large → larger
h. serious → more serious
i. pretty → prettier
j. bad → worse