00 / Adjectives & Adverbs
As ... as (positive equality)
Use 'as... as' to show that two people, things, or situations are equal in a specific quality. This structure compares adjectives or adverbs without changing their form.
A2Elementary
01 / Overview
The as + adjective/adverb + as construction expresses positive equality. It indicates that the first subject possesses a quality to the same degree as the second subject. This structure is used with both gradable and non-gradable descriptors.
02 / Form
as + adjective/adverb + as
Place the base form of the adjective or adverb between the two 'as' particles. Do not use comparative forms like 'taller' or 'more expensive' within this structure.
03 / Examples
04 / Common mistakes
He is as taller as his father.
He is as tall as his father.
Use the base adjective, not the comparative form ending in -er.
This phone is as expensive than that one.
This phone is as expensive as that one.
Always use 'as' for the second part of the comparison, not 'than'.
05 / Practice
Complete the sentence: My car is ______ (old) yours.
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Answer: as old as
Why: To show equality, use 'as' before and after the base adjective 'old'.
Correct the error: The movie was as better as the book.
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Answer: as good as
Why: The base form 'good' must be used instead of the comparative 'better' between 'as... as'.
Rewrite using 'as... as': Sarah and Tom are both 1.7 meters tall.
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Answer: Sarah is as tall as Tom.
Why: Since their height is equal, the 'as + adjective + as' structure is required.