know for sure that
Velmi časté
construction
Typeconstruction
Structurevědět + naprosto jistě + že + finite clause
UsageUsed to say that someone is completely sure about a fact.
Příklady
I know for sure that he or she will come.
We know for sure that he or she is at home.
I do not know for sure that it is valid.
He knew for sure that he had time.
I want to know for sure that it is correct.