📘 Grammatik · Unit 20 · 1/13
Welcher? Was für ein?
3 parts8 examples3 common mistakes
Example
- Welcher Zug fährt nach Bern?Which train goes to Bern?
Rule
Both ask about a noun — but
welcher asks about a selection, was für ein about the kind.Practise
This topic’s own test: 10 sets, 10 questions in each.Grammatik-Test →
welcher: selection from something known
welcher is declined like the definite article. You use it to ask about a particular item from a known set.
| Kasus | maskulin | feminin | neutral | Plural |
|---|---|---|---|---|
| Nominativ | welcher | welche | welches | welche |
| Akkusativ | welchen | welche | welches | welche |
| Dativ | welchem | welcher | welchem | welchen |
- Welcher Zug fährt nach Bern?Which train goes to Bern?
- Welches Buch meinst du?Which book do you mean?
- Mit welchem Bus fährst du?Which bus are you taking?
was für ein: kind and quality
ein is declined according to the case in the sentence; was für itself stays unchanged. In the plural ein is dropped.
- Was für ein Auto hast du?What kind of car do you have?
- Was für eine Wohnung suchen Sie?What kind of apartment are you looking for?
- Was für Bücher liest du gern?What kind of books do you like reading?Plural: ohne ein
The difference in conversation
If someone points at three jackets, you ask Welche Jacke nimmst du?. If you know nothing yet, you ask Was für eine Jacke suchst du?.
- Welche Jacke nimmst du – die blaue oder die schwarze?Which jacket are you taking – the blue one or the black one?
- Was für eine Jacke suchst du?What kind of jacket are you looking for?
Common mistakes
Welche Auto hast du?
Was für ein Auto hast du?
was für ein asks about the kind, not welcher.
Was für einen Bus fährst du?
Mit welchem Bus fährst du?
When choosing from known lines
welcher is used.
Welcher Buch meinst du?
Welches Buch meinst du?
das Buch is neuter, so welches.Quick check · 3 questions
Got the rule? Try three questions; the full test is below.
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Your turn: write a sentence with this topic
The assistant corrects it and explains why. It’s a suggestion; if unsure, check the rule above.
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Done! 🎉 Unit 20 · 1/13
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