you never can tell

Also, you never know. Perhaps, possibly, one can't be certain, as in You never can tell, it might turn into a beautiful day, or You may yet win the lottery—you never know. The first term uses tell in the sense of “discern,” a usage dating from the late 1300s; the variant dates from the mid-1800s.

Words nearby you never can tell

you get what you pay for, you just don't get it, you know, you know something?, you name it, you never can tell, you said it, you scratch my back and i'll scratch yours, you'd, you'd better believe it, you'll