"Jaywalk" is normally used as a verb. "Do jaywalking" is not a common phrase. As you can see, I would add "ever" to both the correct sentences.Hi,
I want to ask a question concerning jaywalking, which is idiomatic to your ear?
Have you done jaywalking before?
Have you (ever) jaywalked before?
Do you do jaywalking?
Do you (ever) jaywalk?
Thanks a lot
The red one is my choice.