Comparatives and Superlatives
Comparisons help us describe differences precisely. Move beyond simply adding -er and learn the patterns that make comparisons accurate and natural.
About 20 minutes · Guided practice · 10-question mastery test
Try the activities, then check your answers.
Try the activities, then check your answers.
Compare options for a real priority. A grammatically correct comparison also needs a clear comparison group.
By the end of this lesson, you can…

The essential rules
Short adjectives
Most one-syllable adjectives take -er/-est. Double a final consonant after one vowel; change final y to i.
small → smaller → smallest · big → bigger → biggestLong adjectives
Use more/most with most adjectives of two or more syllables. Use than after a comparative.
more reliable than · the most convenient optionEquality and degree
Use as…as for equality and modifiers such as much, far, a little before comparatives.
as fast as · far better · a little more expensiveEqual in the feature being compared
Use as + adjective + as. This compares their organisation; it does not say they are identical in every way.
Choose a journey
Bus
£6 · 50 minutes
Train
£14 · 25 minutes
Taxi
£30 · 20 minutes
Short adjectives often take -er/-est. For a short adjective ending in one vowel letter + one final consonant, double that consonant: big → bigger. Do not double w, x or y. Consonant + y changes to -ier/-iest: busy → busier. Many longer adjectives use more/most.
See the pattern
| Adjective | Comparative | Superlative |
|---|---|---|
| quiet | quieter | the quietest |
| happy | happier | the happiest |
| useful | more useful | the most useful |
| good / bad | better / worse | the best / the worst |
Compare price and time separately
A £10 budget changes the choice
The cheapest and slowest of these three options.
Faster than the bus, but £4 above the budget.
The fastest and most expensive of these three options.
With £10 and plenty of time, the bus fits the stated needs. The superlatives compare only these three choices.
Three mistakes to avoid
Guided practice
Try each item before opening the answer.
1. This route is ___ (short) than the motorway.
shorter: a one-syllable adjective takes -er.
2. It is the ___ (busy) day of the year.
busiest: change final y to i before -est.
3. The train is ___ expensive than flying.
less: use less + adjective + than for a lower degree.
4. Maya is ___ organised as Lee.
as: equality uses as + adjective + as.

Final check
Check your understanding
Choose one answer for each question. Read the context carefully: a question may ask for a particular form, meaning or register. The explanations show why that answer fits.
0 of 10 questions answered
