Question

what is the sign of superlative degree​

Answer 1

Answer:

Adjectives with two syllables can form the comparative either by adding -er or by preceeding the adjective with more. These adjectives form the superlative either by adding -est or by preceeding the adjective with most. In many cases, both forms are used, although one usage will be more common than the other.

Explanation:

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Answer 2

Answer:

adding "est" is the sign of superlative degree