run low
run short
go , *****

Now it looks as if they are running low on energy.

And when the money ran low, there would be more where that came from.

He covered his head and tried to run low to the ground.

Or maybe language had nothing to do with it, and her funds were running low.

He runs low to the ground with his head up.

But his supply of the drug was starting to run low.

He had to fight his way out with air running low.

Her time was running low to find out who and why.

The telephone industry isn't just running low on local phone numbers.

Time was running low, days down to hours now; something must happen soon.