it's no use
Examples
It's no use going back to yesterday, because I was a different person then.
The good die young, because they see it's no use living if you have got to be good.
It's no use crying over spilt milk, because all of the forces of the universe were bent on spilling it.
It's no use crying over spilt milk.
If you have a roving eye, it's no use having the other one fixed on Heaven.
It's no use carrying an umbrella if your shoes are leaking.