Adjectives
* Short adjectives: Add "-er" to the end.
* *tall - taller*
* *short - shorter*
* *big - bigger*
* Long adjectives: Use "more" before the adjective.
* *beautiful - more beautiful*
* *interesting - more interesting*
* *difficult - more difficult*
* Irregular adjectives: These have unique forms.
* *good - better*
* *bad - worse*
* *far - farther/further*
Adverbs
* Short adverbs: Add "-er" to the end.
* *fast - faster*
* *slow - slower*
* *early - earlier*
* Long adverbs: Use "more" before the adverb.
* *happily - more happily*
* *carefully - more carefully*
* *quickly - more quickly*
* Irregular adverbs: These have unique forms.
* *well - better*
* *badly - worse*
* *far - farther/further*
Key points:
* Comparative forms are used to compare two things.
* Use "than" after the comparative form. For example, "The blue car is *faster* than the red car."
* Some adjectives and adverbs have the same form as their comparative, such as *unique* and *perfect*. These words cannot be compared using "-er" or "more".
Examples:
* The *smaller* dog is more playful.
* She ran *more quickly* than her friend.
* The *better* you study, the higher your grades will be.
Let me know if you'd like more examples or have any specific questions!