When we talk about the similarities and differences between things, we are comparing them. As you know, we describe things (or nouns) with adjectives (words that describe nouns). When we compare two things, we add a special ending to the adjectives, and this is called the comparative form.
- Ants are small. Dragonflies are big.
- Ants are smaller than dragonflies. Dragonflies are bigger than ants.
In the second set of sentences, we are comparing two insects and their sizes, so we use the comparative form. Ants are smaller than other insects.
Comparatives are made in two ways:
- by adding -er to the end of the adjective
- by adding the word “more” before the adjective
-er
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