And that meant my existence might even come into question.

The rest may never become object of human knowledge until existence on this earth has come to an end.

The album is almost unknown, its existence comes only from plays on Last.

However, the existence of the sesquinitride has since come into question.

It seemed that her whole existence had come to depend on him.

The existence of such a field came as a surprise.

Consequently, their existence can come to an unexpected end very quickly.

The existence of this mass grave came to light in much the same way that others have recently.

The existence of anything like that had come as a complete surprise to him.

Their existence has come into question due to some industrialization in the area.