Writing Style

Comparatives, equatives, and superlatives are adjective forms that are used to compare two or more things. They show the degree or amount of similarity or difference between two or more things.
The anatomy text book is heavier than the reflective nursing practice book. (compartive)
The pharmacology text book is as heavy as the anatomy text book. (equative)
The pathophysiology text book is the heaviest of all text books. (superlative)

Comparatives

Comparatives are used to compare two nouns or pronouns.
When making comparatives, you can use one of two forms.
1. comparative + than: A preceptor has more experience than a new nurse.
2.  but + comparative: A new nurse has some experience, but a preceptor has more experience.
Please see the links in the “More Information” section below for rules about forming comparatives for words with different numbers of syllables as well as practice exercises.

Equatives

Equatives and non-equatives are used to show equality or inequality between nouns or pronouns.

Equatives have the following form: as + adjective + as
Her academic writing class is as interesting as her health assessment class.

Non-equatives have following form: not + as + adjective + as
Shaikhah is not as experienced as Sarah in midwifery.

Please see the links in the “More Information” section below for rules about forming equatives and non-equatives as well as practice exercises.

Superlatives

Superlatives are used to compare more than two things. 
Superlatives show which one of the things is the most or least of an adjective.
Superlatives usually include the article “the” because there is only one superlative.
Sarah is the most experienced midwife.
Shaikhah is the newest midwife.
She has the least experience as a midwife.
Please see the links in the “More Information” section below for rules about forming superlatives for words with different numbers of syllables as well as practice exercises.

More Information

“Equative, Comparative, and Superlative Adjectives,” ESLlibrary.com

“Comparison of Adjectives,” 7ESL