This is the 11838th most frequent Polish word.
kradzie
The Polish word "kradzie" appears to be a typo. If you meant "kradzież," it translates to "theft" in English.
The word 'kradnie' signifies the present tense verb 'he is stealing', reflecting ongoing theft action.
On kradnie mojego ulubionego długopisu.
He is stealing my favorite pen.
'Kradnie' here portrays a recurring behavior or habitual action in the present tense.
Chłopiec często kradnie cukierki ze sklepu.
The boy often steals candies from the store.
In this question form, 'kradnie' is used to convey uncertainty or inquiry about a potential act of stealing.