Phrasal Verb - Keep up (with)

Keep up (with) - stay at the same pace (as something/someone) (Intransitive & Transtive)(Inseparable)

Examples:

"The cat is keeping up with the girl on the treadmill"
___________
"It's difficult to keep up with this class, I don't learn everything fast enough"
___________
"Our company needs to become more modern if we want to keep up with today's trends"
___________

"You're so slow! Keep up, or I'll leave you behind!"