Ifound a twenty dollar bill walking down the street

I saw your last post. I'm very sorry for misunderstanding you. I did not see the new post until now. Forgive me.

Misplaced modifier: walking down the street
You could say, "Walking down the street, I found a twenty-dollar bill." Instead of putting, "I found a twenty-dollar bill walking down the street." The sentence use makes it look like the twenty-dollar bill was ACTUALLY walking down the street.

Again sorry for my mistake.