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Questions & Answers about Które krzesło jest wygodne?
What does które mean in this sentence?
Które is the neuter nominative singular form of the interrogative pronoun który, meaning which. It agrees in gender, number, and case with krzesło, which is neuter singular.
Why is krzesło in the nominative case?
Krzesło is the subject of the sentence—the thing we’re asking about—so it stands in the nominative case.
Why is the verb jest in the singular form?
Because krzesło is singular. Jest is the 3rd person singular of być (to be). If you asked about multiple chairs, you would use the plural są:
Które krzesła są wygodne? (Which chairs are comfortable?)
What kind of word is wygodne, and why does it end with -e?
Wygodne is an adjective in the neuter nominative singular form (agreeing with krzesło). Neuter singular adjectives in nominative end with -e.
Why doesn’t this question start with czy?
Czy is used to form yes/no questions. Here we want an open question (asking which), so we begin with the interrogative pronoun które, not czy.
Can I change the word order to Krzesło które jest wygodne?
No. Polish questions typically start with the interrogative word. Moving krzesło first would sound like a statement fragment, not a proper question.
What’s the difference between które and jakie?
Both can mean which or what kind of, but które is used when choosing from a specific set (e.g. chairs in front of you). Jakie is more general and asks about properties:
Jakie krzesło jest wygodne? (What kind of chair is comfortable?) vs.
Które krzesło jest wygodne? (Which of these chairs is comfortable?)
How would I ask “Which person is tall?” with the same structure?
You’d use the masculine/feminine form of który and adjust the adjective:
Który człowiek jest wysoki? (masculine)
Która osoba jest wysoka? (feminine)