Here are the superlative forms of the adjectives:
1. Good - the best
2. Bad - the worst
3. Fast - the fastest
4. Exciting - the most exciting
5. Heavy - the heaviest
6. Famous - the most famous
7. Clever - the cleverest
8. Thin - the thinnest
**Explanation:**
* For most short adjectives (like fast, heavy, clever, thin), we add "-est" to the end of the word to form the superlative. If the adjective ends in a single vowel followed by a single consonant, we often double the consonant before adding "-est" (e.g., thin -> thinnest).
* For longer adjectives (like exciting, famous), we use "the most" before the adjective.
* Good and bad are irregular adjectives, meaning their superlative forms are different from the usual pattern (good -> best, bad -> worst).