After a short, stressed vowel followed by l, m, n, ng or r, double that consonant and add -etje.
Every Dutch diminutive is a het-word and forms its plural with -s (centrummetjes).
The diminutive (verkleinwoord) of centrum is "het centrummetje". After a short, stressed vowel followed by l, m, n, ng or r, double that consonant and add -etje.
Het. Every Dutch diminutive is a het-word, so it is het centrummetje even though centrum takes het.
Diminutives always add -s, so the plural is centrummetjes.
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