In English, if an adjective stem is monosyllabic (like bright ), how are the comparative and superlative degrees usually built up?

Question

In English, if an adjective stem is monosyllabic (like  bright ), how are the comparative and superlative degrees  usually  built up?

Answer

By inner flexion, changing the root vowel.

Answer

Synthetically, by adding the suffixes -er and -est.

Answer

Analytically, using the word-morphemes  more  and  most .

Answer

Suppletively, using a completely different stem.

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