If she didn't have comfort of some kind soon she'd surely die.

"Had he not taken me to the hospital, I would have surely died."

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

"And what of the brothers who will surely die along the road? "

If he, or anyone here, were to attempt such a thing now, people would surely die.

She says that with friends like these and themselves, the Doctor will surely never die.

Then, when she believed they both would surely die, a man appeared.

If the language is not used at all anywhere it will surely die.

For it became known that those who did so themselves would surely die.

Worse yet, several thousand people now out in space would surely die.