As usual, Joan at this check spent the night on her knees.

We spend more time on our knees than at the oars.

He spent most of every evening on his knees.

Tonight, Francis spent a lot of time on his knees, but he kept getting up.

I hear you've been spending a lot of time on your knees.

The king began to spend time on his knees in prayer.

How many nights had he spent on his knees throwing away money in just such a gambling house?

You don't spend much time on your knees, mister, but I do.

You have spent too many hours on your knees in church.

She'd just spent twenty minutes on her knees doing stuff he'd only ever read about in magazines.