EXAMPLES FROM THE WEB FOR BACK UP
The law said it was his and he had the might to back up the law.
Why you'd put any other man's back up until he broke his spine.
I felt ready in my own mind to back up every assertion of Schomberg's and on any subject.
It was impossible for the truck containing the engineers to back up.
Then that one below there will back up and hitch on at the eastern end.
Tex didn't git Purdy—but they was five more of us there to back up his play.
There have been many indications of that tendency from years back up to the present.
And I put my back up to the wall and cast my cloak back over my shoulder.
It was the duty of everybody to back up Tempest and make it hot for Jarman.
For a minute he had me where I could n't go ahead nor back up.