Puffing and panting we continued to run with renewed vigor.

He was gasping for breath as he ran.

He ran on and on, until he was completely exhausted.

He ran on and on.

He run on for half an hour.

I ran on and on and came in sight of a light.

Rev. King's house was destroyed by a bomb. But still, the buses went on empty.

Go on running for thirty minutes.

Keep running.

I kept running.