The existing protocols often failed under realistic conditions.

The existing bridge was inspected thoroughly after the storm.

Her sudden interest in philosophy made her question the very existance of free will.

No other species in existence rivals the intelligence of dolphins.

The novel described a hidden society of existers who coexisted quietly alongside ordinary people.

The new theory suggests that a parallel timeline could be existable under specific conditions.

The scholar debated whether the multiple existencies recorded in the chronicle referred to the same person.

Her sudden interest in metaphysics led her to question the very existency of the self.

The scientist cataloged all known existents in the newly discovered ecosystem.

Scholars debated whether the mountain spirit was an existent or merely a legend.