If the mountain won't go to Mohammed, Mohammed must go to the mountain
Into every life a little rain must fall
It is a truth universally acknowledged, that a single man in possession of a good fortune, must be in want of a wife ( the opening line of Pride and Prejudice )
Must have
Must have accessory
Must see TV ( NBC, advertising slogan )
Must win game
Needs must when the Devil drives
One Of Us Must Know ( Bob Dylan song )
She who must be obeyed ( Nickname of Margaret Thatcher )
The show must go on
What can't be cured must be endured
What goes up must come down
When you have eliminated the impossible, whatever remains, however improbable, must be the truth
You Must Have Been A Beautiful Baby ( Bing Crosby song )
You Took The Words Right Out Of My Mouth, It Must Have Been Whilst You Were Kissing Me ( Meatloaf song )