Breakdown of Czy pan pozamykał wszystkie okna na zapleczu?
pan
sir / Mr.
czy
[question particle]
okno
window
na
on, at / to (motion toward) / for (a meal) / for (waiting for)
Questions & Answers about Czy pan pozamykał wszystkie okna na zapleczu?
Why is the verb pozamykał used here instead of the standard perfective zamknął?
The verb pozamykał uses the distributive prefix po-, which emphasizes that an action was performed on multiple objects or in sequence. Because the sentence involves multiple windows (wszystkie okna), pozamykać paints a clear picture of the person going around and closing them one by one. While zamknął would be grammatically correct, pozamykał is more descriptive and highly natural in this context.
How is pozamykać formed? Doesn't the prefix po- usually just make an imperfective verb perfective?
Distributive verbs are unique. They are often created by attaching the prefix po- to the imperfective stem of an existing verb pair. Here, po- is added to the imperfective zamykać (to close), not the perfective zamknąć. The resulting verb, pozamykać, is strictly perfective. You will see this pattern often with plural actions, like pootwierać (from otwierać, to open) or pochować (from chować, to hide).
Can I use pozamykał if he only closed one window?
No, that would sound incorrect. The distributive po- prefix inherently requires a plural object (multiple things being acted upon) or a plural subject (multiple people doing the action). If there were only one window, you must use the standard perfective form: Czy pan zamknął okno?