When we compare two nouns, we use comparative adjectives. When we compare more than two nouns, we use superlative adjectives.
For Example. –
a. Milind is taller than John.
b. Zakir is the tallest of the three brothers.
Look at the following sentence and observe the changes in the sentence. Discuss the changes and note your responses:
Anne is the brightest girl in class.
In the third sentence, the superlative form of the adjective (brightest) is used because there is a comparison between more than two nouns.