Learn Polish: Skoro ona przetańczyła całe wesele, rano bolały ją nogi. - Since she danced through the whole wedding reception, her legs hurt in the morning.

It turns the imperfective verb tańczyć (to dance) into the perfective przetańczyć (to spend time dancing). In this lesson's context, it emphasizes that the action of dancing completely filled the specified time period from start to finish.

Why is całe wesele in the accusative case here instead of being preceded by a time preposition like przez?

When you use a verb with the duration-focused prze- prefix, the time period you spent doing the action becomes the direct object. Therefore, całe wesele takes the accusative case naturally, with no preposition needed.

Could I use odkąd instead of skoro to say 'since' in this sentence?

No, because odkąd is strictly for elapsed time, meaning 'from the time when'. Here, 'since' means 'given that' or 'seeing as', which translates to skoro. You could also use ponieważ (because), but skoro is perfect for drawing a logical conclusion from a stated fact.

Why does the Polish sentence say bolały ją nogi instead of jej nogi bolały?