Ronaldo
very Fast
As there is no credible evidence that such exists, figures on how fast it could run are unavailable.
64mph
47
There are quite a few such as: 1) They can run as fast as lightning! 2) They can run as fast as a cheetah.
no you just cant run so fast as your legs wont move that fast
47
As fast as T-Rex could run.
It enjoyed lunch on the hoof. Most of it's prey could run fast so it had to run faster to be able to eat.
Well I am not a fast runner, so I would estimate that I would run at about 5 mph.
How about "could"? For example, "I could run fast when I was a kid."