Comparatives and superlatives
To compare TWO things use the comparative (bigger, more expensive). To single out ONE in a group use the superlative (the biggest, the most expensive).
The length rule

- Short adjective (one syllable): add -er / -est: tall -> taller -> the tallest.
- Long adjective (two or more syllables): use more / the most: modern -> more modern -> the most modern.
- Ending in -y: change y to i: happy -> happier -> the happiest.
Irregulars you must know
good -> better -> the best; bad -> worse -> the worst; far -> further -> the furthest.
Worked example
- Monterrey is ___ than Merida (hot). Two cities compared -> comparative: hotter.
- This is ___ restaurant in town (good). One in a group -> superlative: the best.
Practice with feedback
An elephant is ___ than a dog.
That was ___ film of the year.
More beautiful is the correct comparative of beautiful.
Niagara Falls are (famous) place I have visited.
Common errors
- Double comparing: more bigger (use only one tool).
- Forgetting the before a superlative: it is biggest (it is the biggest).
- Adding -er to long adjectives: beautifulest.
Why this matters
Reviews, rankings, travel blogs and exams are full of comparison. Getting the rule of length right makes you sound accurate.
Conecta
Compare your town with another city you know: write two comparatives and one superlative.
Pick one long and one short adjective to show both patterns.
Tu texto se guarda sólo en este dispositivo.
Explicación visual: Comparing the world: comparatives and superlatives
- Comparing the world: comparatives and superlatives
- The length rule
- Common errors
- Escena 4
Antes de continuar, responde mirando esta idea. Mira la escena «Common errors». Con tus palabras: ¿qué explica y por qué importa? Añade un ejemplo tuyo y señala qué parte aún te confunde.
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