You need to be more specific. Otherwise all you'll get is a cliched answer like "Don't worry, you'll just know."
Dont know, what's a Sure? Dont know, what's a Sure?
Sure Know Something was created in 1979.
Wait till you know for sure!
I do not know for sure it may have been _____________ _________________ or _______________ _________________ we may never know for sure.
when you know for sure that she likes you
.... when you go ahead and try that, that you are sure of!
Unless you find him in bed with another person, you won't know for sure.
you can't know for sure
You never will know for sure.....
.
I'm not sure ? I know she was a cheerleader and she can do cartwheels but I'm not sure about back handsprings .
the only sure way to know is to ask him