The long double vowel becomes single when the syllable opens (groot → groter).
Use the comparative with dan (groter dan…) and the superlative with het (het grootste).
The comparative (vergrotende trap) of groot is groter. The long double vowel becomes single when the syllable opens (groot → groter). Use it with 'dan': ...groter dan...
The superlative (overtreffende trap) of groot is grootst, usually used as het grootste.
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