Scholars debated whether the perpetuality of natural laws implies an unchanging order to the cosmos.

Traders often favor perpetuals when they want exposure without an expiry date.

When the grandmasters repeated the sequence, the game ended in a perpetual.

The meetings felt perpetually endless, each agenda spawning another hour of discussion.

The perpetualness of the ancient forest inspired both awe and a deep sense of responsibility in the villagers.

The perpetual hum of the refrigerator was a comforting background noise that made the apartment feel less empty.

The lawyer explained how perpetuities affect the transfer of property across generations.

The ancient charter promised the perpetuance of the forest to all future generations.

The perpetuators of the rumor refused to admit their role, allowing the false story to spread unchecked.

The perpetuator of the town's superstitions never admitted responsibility, yet his stories continued to shape behavior for years.