Looking on the internet deeply has found these results:

I walked past the dog. is the most popular phrase on the web.

I walked passed the dog. 11 results on the web	I walked past the dog. 146 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
Sep 28, 2012 ... But I walked passed the dog and the bird flushed. Blood pumping and shaking hands, I lifted the gun up and shot twice, and missed both times.	Dec 29, 2014 ... Now, I'm not the kind of person who normally goes up to talk to strangers, but I walked past the dog and then turned around and walked back. As I walked past the dog's rigid form, out of the corner of my eye I could see his pink nostrils monitoring the scent emanating from the grass. �Okay, Mr. Pink Nose �... Now, I'm not the kind of person who normally goes up to talk to strangers, but I walked past the dog and then turned around and walked back. �Do you mind if I�... It's true, I walked past the dog the 17th time, and sure enough, he bit me again. Over the years, I've pet the dog, fed the dog, cursed the dog, kicked the dog, but�...

I walked passed the dog.

11 results on the web

I walked past the dog.

146 results on the web

More popular!

Sep 28, 2012 ... But I walked passed the dog and the bird flushed. Blood pumping and shaking hands, I lifted the gun up and shot twice, and missed both times.

Dec 29, 2014 ... Now, I'm not the kind of person who normally goes up to talk to strangers, but I walked past the dog and then turned around and walked back.
As I walked past the dog's rigid form, out of the corner of my eye I could see his pink nostrils monitoring the scent emanating from the grass. �Okay, Mr. Pink Nose �...
Now, I'm not the kind of person who normally goes up to talk to strangers, but I walked past the dog and then turned around and walked back. �Do you mind if I�...
It's true, I walked past the dog the 17th time, and sure enough, he bit me again. Over the years, I've pet the dog, fed the dog, cursed the dog, kicked the dog, but�...