They had to stop twice in the next half hour to rest.
The boys stopped once or twice to make sure they were right.
"I think my heart stopped twice on the way over."
They had stopped twice for water and a brief rest, then continued.
Going into tonight's match, he had been stopped twice, both times in 1985.
He stopped twice to feel the wall for the edges of a door and to listen.
He wasn't particularly frightened, having stopped twice in that distance.
The average reader will stop twice to gaze at this image.
I have never known a situation where a doe has used the same breeding stop twice.
His heart also stopped twice but he was brought back and gradually began to recover.