The initial idioms of the letter Y

you can't put a wise head on young shoulders	you can't put an old head on young shoulders
you can't run with the hare and hunt with the	you can't take it with you
You can't teach an old dog new tricks	you can't tell a book by its cover
you can't unring a bell	you can't win
You can't win 'em all	you could cut it with a knife
you could cut the atmosphere with a knife	You could have heard a pin drop
you could have knocked me over with a feather	You could have knocked me down with a feather!
You couldn't!	You could've fooled me
you crumb	you deal with it
You don’t know the half of it	You don't change horses in the middle of the r
You don't get for nothing	You don't know the half of it
You don't know where it's been	you don't say
you dope	you eat with that mouth?
You first	you gals
you get what you pay for	You give up too easy