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Spelling: korte en lange klinkers, dubbele letters

Spelling rules: short and long vowels

A1 · Beginner · ≈ 22 min

Why does man give us mannen, but maan gives us manen? Why does wonen turn into woon with two o's? These aren't exceptions, but a single rule about syllables. We'll explain it once, and it will cover plurals, conjugations, the past tense, and adjectives.

1. Divide into syllables

One consonant between vowels goes to the next syllable, two are divided
WoordLettergrepenKlinkerHow it sounds
manenma-nenopen syllablelong “a”
mannenman-nenclosed syllableshort “a”
wonenwo-nenopenlong “o”
bossenbos-senclosedshort “o”
deurendeu-renopeneu
kussenkus-senclosedshort “u”

Check: pronounce the word syllable by syllable aloud. If a syllable ends in a vowel, it is long, and in writing, it is represented by a single letter.

2. Two implications

What happens when a word changes
RuleExampleWhy
A long vowel in an open syllable is written with one lettermaan → manen, boom → bomen, woon → wonenma-nen: the syllable is open, a second “a” is not needed
A short vowel requires a double consonantman → mannen, bos → bossen, kat → kattenotherwise, it would be ma-nen with a long “a”
At the end of a word, the consonant is not doubledik kus, ik pak, ik zitthe end of the word is already a closed syllable
A long vowel in a closed syllable is written with two letterswonen → ik woon, spelen → ik speelotherwise, it would be read as short

3. Two more rules: v/f and z/s

  • leven → ik leef — maar: wij leven

    to live: I live — we live

    At the end of the word, it's “f”; between vowels, it's “v” again.

  • reizen → ik reis — maar: wij reizen

    to travel: I travel — we travel

  • de brief → de brieven

    letter — letters

    Plural restored the voiced v.

  • het huis → de huizen

    house — houses

    s between vowels changes to z.

4. Where this rule applies

One rule — five topics
TopicExampleWhat happened
Verb stemwonen → ik woonclosed syllable: double o
Pluralkat → kattenshort vowel: double t
Pluralraam → ramenopen syllable: single a
Past tensepraten → praattepraat + te, both t's remain
Adjective + -egroot → grotegro-te: syllable is open
Comparative degreedik → dikkershort vowel: double k
Diminutiveauto → autootjelong o before -tje is doubled

This is why this rule appears again and again in other lessons — it is the same one.

Pairs that differ by one letter

✕ Not like this

manen“men”

✓ Correct

mannen

men

Why: A short a needs a double n. Manen means “moons” (from maan).

✕ Not like this

bosen“forests”

✓ Correct

bossen

forests

Why: A short o needs a double s: bos-sen. With one s you would get bo-sen with a long o, as in boze (“angry”).

✕ Not like this

zonen“suns”

✓ Correct

zonnen

suns

Why: A short o: zon-nen. Zonen means “sons” (from zoon).

Woordenlijst

  • de lettergreeppl. lettergrepen

    syllable

    Verdeel het woord in lettergrepen.

  • de klinkerpl. klinkers

    vowel

    a, e, i, o, u zijn klinkers.

  • de medeklinkerpl. medeklinkers

    consonant

    Een dubbele medeklinker houdt de klank kort.

  • kort / lang

    short / long (about a sound)

    De a in man is kort.

  • verdubbelen

    to double

    De medeklinker wordt verdubbeld.

  • de maanpl. manen

    moon

    De maan schijnt.

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