6.30 Comparative and superlative adverbs

You may want to say how something happens or is done in relation to how it happens on a different occasion, or how it was done by someone or something else. You can do this by using adverbs in the comparative or superlative.

Most adverbs of manner (see paragraph 6.36) have comparatives and superlatives.

A few other adverbs also have comparatives and superlatives: some adverbs of time ('early' and 'late', see paragraph 5.70), frequency ('often' and 'frequently', see paragraph 5.114), duration ('briefly', 'permanently', and 'long', see paragraph 5.123), and some adverbs of place ('near', 'close', 'deep', 'high', 'far', and 'low', see paragraphs 6.68 and 6.89).

6.31

The forms and uses of comparative and superlative adverbs are generally similar to those of adjectives. For more information about comparatives and superlatives of adjectives, see paragraphs 2.108 to 2.117.

However, unlike adjectives, the comparative of an adverb is usually formed with 'more' and the superlative with 'most', and not by adding '-er' and '-est'.