I had not gone far before my little strength again failed me.

If your strength failed at any point, you would surely die.

She could do no more, for her own strength was failing.

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

I knew that he would be off in a second - if my strength didn't fail me first.

But by then I knew indeed that my strength was failing.

He got it about halfway when his strength failed him.

This was followed by several other attacks of similar nature until his strength failed, and he died at York.

He still however continued to fire until his strength failed him.

She had struggled up into a sitting position, but there further strength failed her.