'ever must' is correct and usable in written English.
It is used to emphasize the necessity of something, as in "I ever must remind myself of the importance of kindness."
Justice, as ever, must be seen to be done.
One's bedroom, therefore, more than ever, must be a sanctuary from the madness.
"The state, more than ever, must set an example," he wrote.
Vilfredo Pareto, one of the most influential social scientists ever, must have had France in mind when suggesting that "history is a graveyard of aristocracies".
After all has been said and so little done, the truth about the climate crisis — inconvenient as ever — must still be faced.
No such tonic immersion is available to most contemporary writers, who, as sequestered as ever, must strive alone to transcend the general impoverishment of the political imagination.
As such, Evers must maintain laser focus on how the company treats its American workers.
Evers must therefore not rely on rosy promises, and instead insist on a hard commitment, with accountability, from Foxconn about the kinds of workers it will employ.
That "greatest-ever" must jar with many.
Even five-time Mount Everest summiteer Ed Viesturs, who's considered America's best living mountaineer and is the star of the hit Imax movie Everest, must hustle.
Now, more than ever, you must connect with your readers, you must take the time to reach out to them.
