The crossword solutions for the term 'NEVER KNOW' are THEYLL (6 letters) and YOULL (5 letters). This phrase is often used to express uncertainty about a situation or outcome. It implies that no one can predict what will happen in the future, so it is best to accept that there are some things that are out of our control. The phrase is also used to express resignation or acceptance of a situation, as if to say that it is futile to try and change it.