Normally, adverbs do not change form, but some have comparative and superlative forms. They are usually short adverbs and so they normally have comparative and superlative forms with -er and -est.
Some of the most common comparative and superlative adverbs are:
With LY adverbs (adverbs formed from adjectives by adding -ly to the end) we form the comparative and superlative forms with more and most.
|quietly||more quietly||most quietly|
|slowly||more slowly||most slowly|
|seriously||more seriously||most seriously|
Some adverbs have irregular comparative forms.
|Adjective||Adverb||Comparative Adverb||Superlative Adverb|