Some adverbs, including those that can also be adjectives, use er and est to form comparisons.
Example: soon, sooner, soonest
Instructions: Form the comparative and superlative of these words.
--For answers scroll down.
1. early, earlier, earliest
2. high, higher, highest
3. fast, faster, fastest
4. hard, harder, hardest
5. often, oftener or more often, oftenest or most often