Fine aspect rules: warnings with perfective negatives (Neupadni!), single events in negation, and aspect in questions
I can apply aspect correctly in warnings, negated pasts and experience questions.
Hãy xem các ví dụ sau. Bạn có nhận ra quy tắc ngữ pháp không?
Pozor na schody, neuklouzni — jsou namrzlé!
Mind the stairs, don't slip — they are icy!
Hrabala jsem četla, ale Příliš hlučnou samotu jsem ještě nedočetla.
I have read Hrabal, but I haven't finished Too Loud a Solitude yet.
Chú ý các phần được đánh dấu. Chúng có điểm gì chung?
You know the basic rule: a request for one action is perfective (Zavři okno, prosím), a prohibition is imperfective (Nezavírej okno!). English hides the difference, because Don't close the window and Don't fall look like the same grammar. Czech separates them, and at B2 the exceptions are what make you sound native.
| Situation | Aspect | Examples |
|---|---|---|
| prohibition: don't do it (on purpose) | imperfective | Nekuř tady! Neotvírej to okno! Nekupuj to! |
| warning: don't let it happen to you | perfective | Neupadni! Nezapomeň pas! Nespal se! Neuklouzni! |
| specific one-off request | perfective | Podej mi sůl. Zavolej mámě. |
| invitation, urging, "go ahead" | imperfective | Pojďte dál, sedejte si. Jen si berte! |
The warning type covers things nobody does deliberately: slipping, forgetting, losing, catching a cold. Pozor na schody, neuklouzni, jsou namrzlé! If you say Nepadej!, it sounds like "stop falling over all the time". The friendly imperfective is what a Czech grandmother uses when she puts a plate of buchty on the table: Berte si, nestyďte se! "Sedněte si" is a polite request; "Sedejte si" is a warm "do sit down".
Imperfective negation says the action did not take place at all; perfective negation says the result is missing.
Hrabala jsem četla, ale Příliš hlučnou samotu jsem ještě nedočetla. "I have read Hrabal, but I haven't finished Too Loud a Solitude yet."
English uses the present perfect for both "have you ever" and "have you finished". Czech splits them. Asking about experience, Czechs use the imperfective: Četl jsi někdy Švejka? Viděli jste Pelíšky? Byla jsi už v Kutné Hoře? The perfective asks whether a specific job is done: Přečetl jsi už toho Švejka, co jsem ti půjčil? Both are grammatical; they just ask different questions.
Áp dụng ngữ pháp này vào các bài tập khóa học B2
Bài tập thực hànhPozor na schody, neuklouzni — jsou namrzlé!
Mind the stairs, don't slip — they are icy!
neuklouzni: perfective warning against a one-off accident.
Hrabala jsem četla, ale Příliš hlučnou samotu jsem ještě nedočetla.
I have read Hrabal, but I haven't finished Too Loud a Solitude yet.
četla = experience; nedočetla = unfinished result.
Bài kiểm tra cho chủ đề này đang được chuẩn bị
Luyện tập trong khóa học
Áp dụng ngữ pháp này vào các bài tập khóa học B2