He himself had said very much the same thing upon occasion.
He had been there many times and still lost himself upon occasion.
Upon occasion it had given him away during a Game.
We'd played this game before, and while the score had been very close upon occasion, I was a little ahead on points.
If she is called elsewhere upon occasion, I will take her place.
"Only because I've used the same line myself upon occasion, as you may remember, sir."
More than one of them had occupied it upon occasion.
She might have tried to deny it upon occasion, but she'd always known the truth.
Other members of Anne's family are also discussed upon occasion.
He must have been comforting her; people said all kinds of thing upon occasion and didn't mean them.