Questions & Answers about Ona dużo czyta.
Both are correct. Polish word order is flexible.
- Ona czyta dużo is slightly more neutral.
- Ona dużo czyta or fronted Dużo czyta can highlight the amount.
- Dużo ona czyta is possible but sounds marked/emphatic, often expressive or ironic.
With a verb (as here), dużo is an adverb meaning “a lot/much.”
With a noun, dużo is a quantifier and takes the genitive: dużo książek (a lot of books), dużo wody (a lot of water).
Use często: Ona często czyta = “She often reads.”
Note: dużo = large amount; często = high frequency. English “reads a lot” can imply both; Polish distinguishes them.