The phrase 'mere routine' is correct and can be used in written English.
It is often used to suggest that something is unimportant or easily done. For example, "Filing out the paperwork for the project was mere routine."
Diving, once a joy, had become mere routine.
The important habitual neural networks are not formed by mere routine, nor can they be reversed by clever triggers.
A few real divinities here and there, working their miracles against the backdrop mostly of mere routine if not mediocrity and incompetence.
Yet her offer of mediation has been tartly rebuffed by China.More is involved than mere routine outrage over the arrest of the fishermen off Japanese-controlled islands (the Senkaku islands, or Diaoyu in Chinese) which China claims as its territory.
The United manager also described David de Gea's influential performance as mere routine and he had a point – the Spanish goalkeeper twice saved impressively from Emre Can but was hardly besieged – yet the approach, and the quality on display, was modest in the extreme.
This should be a relationship and not done as a mere activity or routine.
They should never become a matter of mere bureaucratic or political routine.
A mere blip in my routine.
While most remained as huddled masses, accepting of the powers that be, constrained by the limits of their time, stuck in the routines of mere survival, there has always been a small group who want more -- those who are dissatisfied, who don't fit in, who cannot accept the constraints of the status quo, who dream, or who simply want to "know" what is out there.
But Ronald Thompson, president of the Garden State Bar Association, the black bar group, said he came away from the hearings with hope from the mere fact that a once routine police practice had been put under such scrutiny.
The house cappuccino was first rate, too; it was more like a dessert and not the routine coffee with a mere wisp of foam on top.
