Comparative Adjectives vs Comparative Adverbs

1. What are comparative adjectives and adverbs?

We use comparatives to compare two people, things, or actions.

• Comparative adjectives describe people or things: big → bigger.
• Comparative adverbs describe how people do things: fast → faster.

Examples:

• This is a faster car than that one. (comparative adjective → describes a car)
• She runs faster than me. (comparative adverb → describes 'runs')

2. Comparative adjectives

A comparative adjective gives information about a person or thing. It often comes after be or before a noun.

Short adjectives usually add -er: tall → taller. Double the final consonant after a short vowel: big → bigger. Change -y to -i: happy → happier. Longer adjectives usually use more: expensive → more expensive.

• This house is bigger than that house.
• He is taller than his brother.
• This is a faster car than that one.

3. Comparative adverbs

A comparative adverb tells us how one action is different from another. Some short adverbs use -er: fast → faster, hard → harder, late → later, and early → earlier. These words have the same form as adjectives and adverbs.

Adverbs formed from an adjective + -ly use more: carefully → more carefully, quietly → more quietly, slowly → more slowly. Early → earlier, not more early.

• She runs faster than me.
• He arrives earlier than his colleague.
• She drives more carefully than him.

4. Key difference

Use a comparative adjective to give information about a person or thing. Use a comparative adverb to say how someone does an action.

• He is faster than me. (The adjective faster describes him.)
• He runs faster than me. (The adverb faster describes how he runs.)

After be, look, feel, and sound

When be, look, feel, or sound gives information about the subject, use a comparative adjective after it.

• Marta looks happier than her sister.
• This blanket feels softer than that one.
• The new engine sounds quieter than the old one.

5. Irregular comparative forms

The adjective good and the adverb well are different, but both have the comparative form better. Other irregular forms are badly → worse, much / a lot → more, far → farther/further, and little → less.

• This is a good performance. Today’s performance is better. (adjective)
• She sings well. She sings better than before. (adverb)
• She played worse than last week. (adverb)
• We travel more than we did last year. (quantity)
• The station is farther/further than I thought. (distance)
• There is less traffic today. (amount)

6. Comparing to a lower degree and joining comparatives

Less and not as ... as

Use less + adjective/adverb + than or not as + adjective/adverb + as to show a lower degree.

• She works less carefully than before.
• She does not work as carefully as her colleague.
• This hotel is less expensive than the other one.
• My brother is not as tall as me.

Joining two comparatives

Join two comparative adverbs with and before one than phrase.

• She now works faster and more carefully than before.
• He answered more clearly and more confidently than last time.

7. Word order with comparative adverbs

With an action verb and an object, put the object before the comparative adverb.

• ✓ She speaks English more fluently than me.
• ✗ She speaks more fluently English.

8. Comparative modifiers

Put these words before a comparative to show a bigger or smaller difference:

• much faster
• a lot more carefully
• a bit earlier
• far taller

For example: "The new train is much faster than the old one." / "Marta arrived a bit earlier than Leo."