He's involved in some scheme or other that takes up all his time.
"Because we delayed them by taking up their time and effort?"
There were so many people who took up her time.
Maybe Carol is taking up all my mother's and father's time right now because it's necessary.
I know I'm taking up your time, but let's work together on this.
I didn't mean to take up your time with my family's problems.
Don't want to buy no cars; take up your time.
As to taking up my time, there is not much to do in winter.
Many people expected it to take up all our time.
I am ashamed to take up your time like this.