Degrees of Comparison
One of the most useful functions of Descriptive Adjectives is their ability to compare two or more things. For example, we want to say that car A is faster than car B, and car C is the fastest among all of them.
In English, the changing of adjective forms for this comparison purpose is called the Degrees of Comparison. There are three main degrees:
- Positive Degree: The base adjective (no comparison).
- Comparative Degree: Compares TWO things (meaning more).
- Superlative Degree: Compares THREE or more things (meaning most).
Spelling Rules
How we change an adjective from the Positive degree to the Comparative and Superlative degrees depends highly on the number of syllables the adjective has.
1. One-Syllable Adjectives
The rule is very simple: add the suffix -er for the Comparative and -est for the Superlative.
| Positive (Base) | Comparative (More) | Superlative (Most) |
|---|---|---|
| tall | taller | the tallest |
| fast | faster | the fastest |
| cheap | cheaper | the cheapest |
Spelling exceptions for 1 syllable:
- If it ends in e (e.g., large), just add -r and -st -> larger, largest.
- If it ends in a Consonant-Vowel-Consonant pattern (e.g., big), double the last consonant -> bigger, biggest.
2. Two-Syllable Adjectives Ending in Y
Change the y to i, then add -er or -est.
| Positive | Comparative | Superlative |
|---|---|---|
| happy | happier | the happiest |
| easy | easier | the easiest |
| heavy | heavier | the heaviest |
3. Two-Syllable (Without Y) or 3+ Syllable Adjectives
For longer words, we do not add suffixes. Instead, we add the word more in front of the Comparative, and the most in front of the Superlative.
| Positive | Comparative | Superlative |
|---|---|---|
| modern (2 syllables) | more modern | the most modern |
| beautiful (3 syllables) | more beautiful | the most beautiful |
| expensive (3 syllables) | more expensive | the most expensive |
4. Irregular Adjectives
There are a few adjectives whose changes do not follow the rules above at all (they must be memorized).
| Positive | Comparative | Superlative |
|---|---|---|
| good | better | the best |
| bad | worse | the worst |
| far | farther / further | the farthest / furthest |
Usage in Sentences
Comparative (Using the word than)
When comparing two things, we always use the conjunction than.
- My house is bigger than your house.
- This book is more interesting than the movie.
Superlative (Using the word the)
When stating the most, we must use the article the before the adjective.
- Mount Everest is the highest mountain in the world.
- She is the most beautiful girl in our class.
Conclusion: Recognize the number of syllables in your adjective. If it’s short (1 syllable), use -er/-est. If it’s long (2+ syllables without y), use more/most. Always remember their golden pairs: Comparative is paired with than, while Superlative is paired with the!