- We just walked/drove past a speed limit sign.
- We just passed a speed limit sign.
- We just went by a speed limit sign.
- We just passed by a speed limit sign.
- Anybody can ask a question
- Anybody can answer
- The best answers are voted up and rise to the top
closed as not constructive by tchrist, MετάEd, Cameron, Matt E. Эллен♦, Hugo Oct 5 '12 at 11:52
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.
As onomatomaniak says, none of them is incorrect, and as far as I've ever heard, none is uncommon.
Walked/drove past, passed, went by, and passed by are all legitimate, understandable, and often used.