You don't have to be able to run or even walk fast.
All walked fast, men and women with a lot of work to do.
Then he started down the street, walking fast, not looking back at Nothing.
But it was at least a half hour walk back, if she walked fast.
People walk fast, and there seems to be no time for simple things.
There weren't many people on the street and it was cold, so I walked fast.
Through it and out the door on the far side, walking fast.
He walked fast, with his head down, taking little notice of where they were going.
It's hard for girls to walk fast in new shoes.
Putting him at the head of the team will make them walk faster.