Comparatives and Superlatives Rules: -er, more, as...as

Comparatives and Superlatives: Big, Bigger, the Biggest 🏆

We use comparatives to compare two things, and superlatives to compare three or more. We also use as...as to show equality, and less / not as...as for negative comparisons. The form depends on the adjective length. 🎯

1. Short Adjectives (one syllable) 📋

Add -er for comparatives and -est for superlatives. Double the final consonant if it's consonant-vowel-consonant.

Adjective	Comparative	Superlative
big	bigger	the biggest
tall	taller	the tallest
hot	hotter	the hottest

2. Long Adjectives (two or more syllables) ✨

Use more for comparatives and the most for superlatives. Never use -er/-est with these.

Adjective	Comparative	Superlative
beautiful	more beautiful	the most beautiful
expensive	more expensive	the most expensive
interesting	more interesting	the most interesting

3. Irregular Forms ⚡

Memorise these common irregular adjectives.

Adjective	Comparative	Superlative
good	better	the best
bad	worse	the worst
far	farther / further	the farthest / furthest

4. Equality and Negative Comparison 🔄

Use as + adjective + as to say two things are equal. Use not as...as or less...than for negative comparisons.

Form	Example
as + adj + as	She is as tall as her brother.
not as + adj + as	This book is not as interesting as the film.
less + adj + than	The sequel was less exciting than the original.

5. Common Mistakes ⚠️

❌ Wrong	✅ Correct	Why?
She is more tall than me.	She is taller than me.	'Tall' is short → use -er.
This is beautifullest place.	This is the most beautiful place.	'Beautiful' is long → use 'most'.
This is more better.	This is better.	'Better' is already comparative.
He is as taller as me.	He is as tall as me.	Use base adjective with 'as...as'.

Remember: Short → -er/-est. Long → more/most. Equal → as...as. Irregulars? Memorise them. 🚀