A short stressed vowel doubles the final consonant (dik → dikker).
Use the comparative with dan (zwakker dan…) and the superlative with het (het zwakste).
The comparative (vergrotende trap) of zwak is zwakker. A short stressed vowel doubles the final consonant (dik → dikker). Use it with 'dan': ...zwakker dan...
The superlative (overtreffende trap) of zwak is zwakst, usually used as het zwakste.
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