keep up (3)
This page is about the phrasal verb keep up (3)
If somebody or something keeps you up, you cannot go to bed.
- keep sb up The noise from my neighbour's party kept me up most of the night.
- keep sb up It's getting late so I'd better head home. I don't want to keep you up past your bedtime.
I had to finish the report, and it kept me up
Contributor: Matt Errey