
Catch up
Progress Focus
Used when emphasizing the effort to reach a current standard or level.
After her vacation, she had to catch up with the rest of the class.
After Absence
Often used when returning to work or school after a break.
He's been out sick, but he'll catch up quickly.
Not Instant
Implies a process or period of effort, not an immediate change.
I'm behind on my reading, but I'll catch up over the weekend.