Final -s becomes -z before -er, and the superlative adds only -t.
Use the comparative with dan (viezer dan…) and the superlative with het (het vieste).
The comparative (vergrotende trap) of vies is viezer. Final -s becomes -z before -er, and the superlative adds only -t. Use it with 'dan': ...viezer dan...
The superlative (overtreffende trap) of vies is viest, usually used as het vieste.
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