Natima tried to hurry, but the light was failing fast.

"Did your family say he was failing fast?"

Only his implants were keeping him alive, and they were failing fast.

The light was failing fast; it was about half past nine.

His strength was failing fast, he had to find them soon.

With the light failing fast, they suddenly observe a soldier coming towards them from higher up on the plateau.

We need to stop rewriting the same things again and again (fail fast!

For those whose hearts are failing fast, the waiting becomes increasingly desperate.

I wondered, for the sky was now the color of iron and the light was failing fast.

If there is a bank run, the bank fails fast.