W sobotę w centrum jest wyprzedaż, więc chcę kupić nowe kolczyki i bransoletkę.

On Saturday there is a sale in the center, so I want to buy new earrings and a bracelet.

Breakdown of W sobotę w centrum jest wyprzedaż, więc chcę kupić nowe kolczyki i bransoletkę.

• ja: I
• być: to be
• w: in
• i: and

Questions & Answers about W sobotę w centrum jest wyprzedaż, więc chcę kupić nowe kolczyki i bransoletkę.

Why is it w sobotę, not w sobocie?

Because in Polish, w can take different cases depending on meaning.

• For location, w usually takes the locative:
  
  • w domu = in the house
  • w centrum = in the center
• But for time expressions like on Saturday, Polish uses w + accusative:
  
  • w sobotę = on Saturday
  • w niedzielę = on Sunday

So w sobotę is a standard time expression meaning on Saturday.

Why does centrum stay the same in w centrum?

Centrum is one of those nouns whose singular form usually does not change in spelling across the cases.

So even though w for location requires the locative, the form still looks the same:

• centrum = center
• w centrum = in the center

Grammatically it is locative, but visually it looks unchanged.

What does jest wyprzedaż literally mean?

Literally, it is something like there is a sale.

In Polish, jest often works like there is / there exists in English.

• jest wyprzedaż = there is a sale
• jest problem = there is a problem

So the sentence is not saying the sale is, but rather there is a sale happening.