Sentence examples for once been from inspiring English sources

Antarctica had once been warm.

(Green had once been chairman).

These conditions had once been uniformly fatal.

Macdonald had once been such a cat.

Sir Garfield had once been his teacher.

The building had once been a hotel.

"I have never once been abroad".

It once was.

"Once isn't enough.

Once was enough.

"ONCE is happenstance.