Diphthongs: UI, EI, and IJ
Grammar Rule in 30 Seconds
Mastering UI, EI, and IJ is the secret to sounding like a native Dutch speaker rather than a tourist.
- UI sounds like a tight 'u' gliding into 'i' (e.g., 'huis').
- EI and IJ sound identical, like the 'ay' in 'say' but shorter (e.g., 'ijs', 'klein').
- Always keep your lips rounded for UI and spread for EI/IJ.
Diphthong Formation Guide
| Diphthong | Start Position | End Position | Lip Shape |
|---|---|---|---|
|
UI
|
Rounded
|
Spread
|
Rounded
|
|
EI
|
Spread
|
Spread
|
Spread
|
|
IJ
|
Spread
|
Spread
|
Spread
|
Meanings
These combinations are diphthongs, meaning they consist of two vowel sounds produced in one syllable.
The UI sound
A unique Dutch sound requiring lip rounding.
“Het huis is groot.”
“Ik lust geen ui.”
The EI/IJ sound
A sharp, clear diphthong similar to 'ay'.
“Ik eet een ei.”
“Het ijs is lekker.”
Reference Table
| Form | Structure | Example |
|---|---|---|
|
UI
|
Rounded-to-Spread
|
Huis
|
|
EI
|
Spread-to-Spread
|
Eten
|
|
IJ
|
Spread-to-Spread
|
Ijs
|
|
UI
|
Rounded-to-Spread
|
Tuin
|
|
EI
|
Spread-to-Spread
|
Klein
|
|
IJ
|
Spread-to-Spread
|
Blij
|
Formalitätsspektrum
De woning is klein. (Describing a house.)
Het huis is klein. (Describing a house.)
Het huisje is klein. (Describing a house.)
Het huis is klein, man. (Describing a house.)
Dutch Diphthong Map
Rounded
- UI u-i
Spread
- EI ay
- IJ ay
Beispiele nach Niveau
Ik heb een huis.
I have a house.
Het ijs is koud.
The ice is cold.
Dat is klein.
That is small.
Ik lust ui.
I like onion.
De tuin is mooi.
The garden is beautiful.
Mijn trein komt aan.
My train is arriving.
Zij is erg blij.
She is very happy.
Het is een muis.
It is a mouse.
Ik ben bereid om te helpen.
I am prepared to help.
Het geluid is te hard.
The sound is too loud.
Wij kijken naar de prijs.
We are looking at the price.
Hij heeft een eigen mening.
He has his own opinion.
De beslissing is moeilijk.
The decision is difficult.
Zij schijnt erg tevreden te zijn.
She seems to be very satisfied.
Het is een uitdaging.
It is a challenge.
Hij verkleint de kansen.
He is reducing the chances.
De uitslag van het onderzoek is bekend.
The result of the research is known.
Zijn eigenaardigheden zijn bekend.
His peculiarities are known.
Het is een onvermijdelijke situatie.
It is an unavoidable situation.
Hij wijst het voorstel af.
He rejects the proposal.
De uiterste datum is verstreken.
The deadline has passed.
Zij is een eigengereide persoonlijkheid.
She is a headstrong personality.
Het is een verfijnde techniek.
It is a refined technique.
Hij prijst de uitmuntende prestatie.
He praises the excellent performance.
Leicht verwechselbar
Both involve rounded lips.
Learners think they should sound different.
English speakers use 'eye' for 'ijs'.
Häufige Fehler
Huis as 'hoos'
Huis (rounded)
Ijs as 'eyes'
Ijs (short ay)
Ei as 'ee'
Ei (ay)
Ui as 'oo-ee'
Ui (u-i)
Treating ei and ij as different
They are the same
Over-rounding ui
Natural rounding
Under-rounding ui
Rounded
Inconsistent diphthong length
Consistent length
Mixing up ui and eu
Distinguish ui/eu
Too much tension in ei/ij
Relaxed glide
Hyper-correcting ei/ij
Natural flow
Ignoring regional variation
Standard Dutch
Poor transition speed
Fast glide
Satzmuster
Het ___ is ___.
Ik ben ___ met mijn ___.
Het is ___ om te ___.
Zijn ___ is gebaseerd op zijn ___.
Real World Usage
Ik wil graag een ijsje.
Ben je blij?
Ik ben bereid om te leren.
Wanneer vertrekt de trein?
Mooi huis!
UI toevoegen.
Mirror Practice
Don't over-articulate
Listen to Radio
Regional Differences
Smart Tips
Round your lips like you're whistling.
Keep it short and sharp.
Don't think of it as two letters; think of it as one sound.
Record yourself and compare to a native speaker.
Aussprache
UI
Rounded lips, glide to 'i'.
EI/IJ
Spread lips, glide to 'i'.
Statement
Het huis is klein ↘
Falling intonation for facts.
Einprägen
Eselsbrücke
UI is for 'U' (rounded), EI/IJ is for 'A' (spread).
Visuelle Assoziation
Imagine a round onion (UI) and a flat ice cube (IJ).
Rhyme
UI is round, EI/IJ is flat, remember this and you'll be glad.
Story
A mouse (muis) lives in a house (huis). He eats ice (ijs) and feels happy (blij).
Word Web
Herausforderung
Record yourself saying 'huis' and 'ijs' 10 times, ensuring the lips move for 'huis' but not for 'ijs'.
Kulturelle Hinweise
The 'ui' sound is very sharp and distinct here.
The 'ui' sound is often slightly more open.
Regional accents may turn these into monophthongs.
These diphthongs evolved from Middle Dutch vowel shifts.
Gesprächseinstiege
Wat is jouw favoriete ijs?
Hoe ziet jouw huis eruit?
Ben je blij met je werk?
Wat is je mening over de prijs?
Tagebuch-Impulse
Häufige Fehler
Test Yourself
Het h___s is groot.
Select the correct word.
Find and fix the mistake:
Ik eet een ijs (wrong: 'eye-s').
is / het / klein / huis
Match each item on the left with its pair on the right:
EI and IJ sound different.
A: Hoe is je tuin? B: Mijn tuin is ___.
Which word matches?
Score: /8
Ubungsaufgaben
8 exercisesHet h___s is groot.
Select the correct word.
Find and fix the mistake:
Ik eet een ijs (wrong: 'eye-s').
is / het / klein / huis
Match UI, EI, IJ.
EI and IJ sound different.
A: Hoe is je tuin? B: Mijn tuin is ___.
Which word matches?
Score: /8
FAQ (8)
They merged phonetically over time. It's just a quirk of Dutch history.
For many, yes. It requires muscles English speakers rarely use.
No, spelling is fixed. 'Huis' is always 'ui'.
Use a mirror and focus on keeping your lips rounded.
Yes, like 'ou' and 'au', but these three are the most important.
Yes, slightly, but the standard rules still apply.
Keep practicing! It's muscle memory.
Historical etymology. They come from different roots.
Scaffolded Practice
1
2
3
4
Mastery Progress
Needs Practice
Improving
Strong
Mastered
In Other Languages
Haus/Eis
Dutch 'ui' is more rounded.
Maison/Glace
French vowels are generally monophthongal.
Casa/Hielo
Spanish lacks the complex Dutch glides.
Ie/Aisu
Japanese vowels are short and distinct.
Bayt/Thalj
Arabic diphthongs are less frequent.
Fangzi/Bing
Chinese relies on pitch contours.
