Sentence examples for impossible to know for sure from inspiring English sources

It's impossible to know for sure.

It is impossible to know for sure.

But it is impossible to know for sure.

It's impossible to know for sure, of course.

It's impossible to know for sure with him.

Like so much else in Russia, it is impossible to know for sure.

The Mets have so many moving parts, it is impossible to know for sure.

It is impossible to know for sure what triggered the hunger strike.

It is impossible to know for sure why he is no longer part of the bid.

Again, it is impossible to know for sure, given the secrecy shrouding Mr. Trump's finances.

It is impossible to know for sure whether Hall's extreme approach helped or hurt his performance.