set up (separable): make arrangements for something.
"You'll see Mr. Thomas tomorrow. I've set a meeting up for 9:30 AM."
set back (1. separable): cause a delay in scheduling.
"We've had some problems with the project that have set us back at least
two days . We'll give you a progress report tomorrow."
set back (2. separable): cost.
"I wonder how much Bill's new car set him back?"
slip up (no object): make a mistake.
"You slipped up here. The amount should be $135.28, not $13