He stumbled back a step but did not fall.
He suddenly pushed her away from him, and she stumbled back a step, caught off balance.
She stumbled back a step, then found her body cushioned and supported.
The impact made me catch my breath, stumbling back a step.
He stumbled back a step, looking down at himself.
Relief flooded him so strongly, he stumbled back a step.
He stumbled back a pace, and stood swaying a little, to face the other.
Now we roast, I thought, stumbling back with my arm raised against the flames.
She gasped and stumbled back a couple of steps, hand to breast.