Learning10 September 2026 · 5 min read
Learning Dutch or German as an adult: why a practice partner makes the difference
Day 147 of your app streak and still frozen at the bakery? What research says about learning as an adult, and how to practise with a partner.
You’ve lived in Amsterdam for two years. You can order a koffie verkeerd with confidence, but the moment you try a full sentence, the barista switches to English. Or you’re in Hamburg, on day 147 of your app streak, and you still freeze at the bakery when they ask “Sonst noch was?”
You’re not bad at languages. You’re probably just missing the part that apps can’t give you: regular, slightly awkward conversations with a real person.
Is it too late to learn as an adult?
The biggest study on this (Hartshorne, Tenenbaum and Pinker, 2018) gave an English grammar quiz to about two-thirds of a million people. It found that the ability to learn grammar to a native-like level stays high until around age 17 or 18 and then slowly declines.
Read that carefully, though. It’s about sounding exactly like someone who grew up with the language. It says nothing against holding a real conversation, reading the news, chatting with your neighbours or doing a job interview in Dutch or German. Plenty of adults get there. It just takes more hours and smarter practice than it did when you were eight.
What helps, according to research
1. Little and often beats a lot at once
A review of 317 experiments (Cepeda and colleagues, 2006) found that spreading study sessions out beats cramming the same amount into one go. Fifteen minutes a day will usually get you further than two hours every Sunday.
2. Test yourself instead of re-reading
In a classic experiment (Roediger and Karpicke, 2006), students who tested themselves on a text remembered more of it two days and a week later than students who simply studied it again, even though re-studying felt more effective. For languages, that means: cover the translation and try first. Say the sentence out loud before you check it.
3. Speak early, and speak regularly
Apps are great for vocabulary. But getting words out of your mouth, in real time, while someone waits, is its own skill, and it only grows with practice. Start speaking before you feel ready. You’ll never feel ready.
4. Learn the language of your own life
Skip the zoo animals. Learn the words you need this week: for your job, your hobby, your neighbours, the Gemeinde or the gemeente. You’ll use them sooner, so you’ll remember them better.
Why a practice partner makes the difference
- A fixed time. Like a workout buddy: when someone’s expecting you on Thursday at 19:00, the practice actually happens.
- No switching to English. Agree on it upfront. Your partner won’t rescue you after three seconds of silence, and that’s exactly what you need.
- Fair exchange. If they’re learning English (or your language), you can swap: half the time in each language.
- Someone notices. “Last week you couldn’t say that” is a surprisingly powerful sentence.
How to run a 30-minute practice session
- 5 minutes of small talk. How was your week? Slowly is fine.
- 15 minutes on one topic. Pick it in advance and prepare five words for it: your job, a trip, a recipe, a news story.
- 5 minutes of corrections. Your partner notes mistakes during the chat and goes through the most useful three at the end. Not more.
- 5 minutes to plan. Next topic, next date, and one small thing to practise in between.
And one rule: no judging. Everyone sounds a bit silly in a new language. That’s the price of admission.
Find your practice partner
When you join Pactful, you can pick “Learning a skill or language” as your goal area. A real human then pairs you with someone who wants to keep at it just as much as you do, ideally close by. We’re starting in Hamburg, Amsterdam, Rotterdam, The Hague and Utrecht. Our weekly check-in formats help you keep the rhythm going.
Join the waitlist. Tot snel, or bis bald.
Sources
We checked these sources ourselves. Where a study is small or not peer-reviewed, we say so.
- Hartshorne, J. K., Tenenbaum, J. B., & Pinker, S. (2018). A critical period for second language acquisition: Evidence from 2/3 million English speakers. Cognition, 177, 263–277. doi.org/10.1016/j.cognition.2018.04.007
- Cepeda, N. J., Pashler, H., Vul, E., Wixted, J. T., & Rohrer, D. (2006). Distributed practice in verbal recall tasks: A review and quantitative synthesis. Psychological Bulletin, 132(3), 354–380. doi.org/10.1037/0033-2909.132.3.354
- Roediger, H. L., & Karpicke, J. D. (2006). Test-enhanced learning: Taking memory tests improves long-term retention. Psychological Science, 17(3), 249–255. doi.org/10.1111/j.1467-9280.2006.01693.x