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Use superlative adjectives when one person or thing has the highest or lowest degree of a quality in a group of three or more.
Overview
Use superlative adjectives when one person or thing has the highest or lowest degree of a quality in a group of three or more.
Form and rules
With many short adjectives, use the + adjective-est: tall → the tallest.
Spelling changes often follow the comparative pattern: big → the biggest, happy → the happiest.
With many longer adjectives, use the most + adjective: the most interesting.
Use in for places/groups and of for a specific set: the tallest in the class; the best of the three.
Irregular forms include good → the best and bad → the worst.
A closer look
Superlatives compare one person or thing with the rest of a group. Short adjectives often take -est; longer adjectives normally use the most.
Superlatives normally use the before the adjective. Irregular forms include the best, the worst, and the farthest/furthest.
Examples
She's the tallest person in my family.
This is the biggest room.
Monday was the busiest day.
It's the most expensive hotel here.
That was the best meal of the trip.
Common mistakes
Superlatives normally use the.
Best is already an irregular superlative.
Ready to practise?
The test combines multiple choice, gap completion, error correction, and sentence building so students have to recognise and produce the grammar, not simply reread the rule.