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