Question

Q-What is Comparative and Superlative degree of Costly?
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Answer 1

Answer:

Rules for forming comparatives and superlatives

Comparative, superlative adjectives: rules

Adjective type Adjective Comparative Superlative

Short adjectives (one syllable) old, long older, longer the oldest, the longest

Adjectives ending in one vowel + one consonant big, hot bigger, hotter the biggest, the hottest

Two-syllable adjectives ending in -y ugly, noisy, messy uglier, noisier, messier the ugliest, the noisiest, the messiest

Longer adjectives (with two or more syllables) careful, expensive, beautiful more careful, more expensive, more beautiful the most careful, the most expensive, the most beautiful

With some two-syllable adjectives both -er and -est endings and more / most are possible. polite, common more polite / politer, more common / commoner the most polite / the politest, the most common / the commonest

With some two-syllable adjectives only an -er or -est ending is possible. narrow, simple, clever narrower, simpler, cleverer the narrowest, the simplest, the cleverest

Notable exceptions

good better the best

bad worse the worst

far further / farther the furthest / the farthest

Answer 2

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Comparative degree of Costly is Costlier

Superlative degree of Costly is Costliest

Some other knowledge

Competative degree

Comparative adjectives are used to compare one noun to another noun. In these instances, only two items are being compared. For example, someone might say that "the blue bird is angrier than the robin." Superlative adjectives are used to compare three or more nouns.

Superlative degree

Superlative adjectives are used to describe an object which is at the upper or lower limit of a quality (the tallest, the smallest, the fastest, the highest). They are used in sentences where a subject is compared to a group of objects. Noun (subject) + verb + the + superlative adjective + noun (object).

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