What you'll learn
By the end of this lesson, you'll be able to talk about the biggest, fastest, or most interesting thing in a group using superlative adjectives.
When do I use it?
Use a superlative when you compare three or more things and want to say that one is at the extreme of the group. Adjectives in the superlative always take the.
- The Nile is the longest river in the world.
- This is the most expensive hotel in the city.
- She is the tallest girl in her class.
How do I form it?
Short adjectives take the + -est: tall, the tallest; fast, the fastest. Long adjectives take the most + adjective: interesting, the most interesting; expensive, the most expensive.
The + adjective-est / most + adjective + (noun) + in + place or group. Example: The cheetah is the fastest animal in the world.
The irregular superlatives mirror the comparatives: good → the best, bad → the worst, far → the farthest/furthest.
Note the preposition: use in for a place or group (the tallest building in the city) and of for a period or list (the happiest day of my life).
Common mistakes for Spanish speakers
Three typical slips. First, the double superlative: Spanish "el más alto" tempts learners into "the most tallest" — pick one form, never both. Second, forgetting "the": Spanish says "es el más rápido", so English must say "the fastest", not "fastest" alone. Third, preposition transfer: Spanish says "el más alto de la clase", and learning "de" literally produces "the tallest of the class" when the natural English is "the tallest in the class".
Short word means the -est; long word means the most. Remember the article "the" every time, and use "in" before a group or place.
Practice
Multiple Choice
A2Which superlative is correct?
Fill in the Blank
A2This is the interesting book I have ever read.
Hint: 'Interesting' is a long adjective, so it needs 'the most'.
Find the Error
A2Practice Speaking
Apply what you've learned in a real conversation with AI feedback.
Level: A2