Sentence examples for could ever know from inspiring English sources

Surely only the smartphone itself could ever know that?

Of course, no one could ever know what the reaction of Japan might have been.

My greatest regret... is that my father died before my children could ever know him.

But under the rules of the study, none of the research subjects could ever know.

We have messy, throbbing hearts and we are stronger than anyone could ever know.

They know, thanks to the Internet, more about you and your intentions than you could ever know about theirs.

But even if one were willing to accept the perplexing claim that a smartphone could be conscious, could you ever know that it was true?

But in today's market, how could we ever know?

Could we ever know if the universe is infinite?

But I had to smile at such a foolish thought — indeed, how could I ever know?

How could anyone ever know that something is good before it exists?