"necessity of doing" is a grammatically correct phrase and can be used in written English.
It means the state of being required or essential to do something. Example: The necessity of doing laundry every week is a chore that many people dread.
"I didn't feel the necessity of doing it.
But the necessity of doing something in this session stands on its own merits".
Do you get the sense the central government appreciates the necessity of doing something now?
"Indonesia understands the necessity of doing its part to face the urgent global challenge of combating climate change," said Indonesia's president, Susilo Bambang Yudhoyono.
Whatever the conclusions, whatever the effectiveness, of challenging facts, the idea that we have to debate the necessity of doing so strikes me as absurd.
What follows below are several bonus tracks, arguments for the necessity of doing your homework (Glenn Beck) and reading Thucydides (David Brooks).
Governments, faced with the necessity of actually doing things, do not have this strategic choice, though that did not stop the Abbott government from attempting it during its first few months in office.
Thecentral issue is whether either conception of divine freedom can be fully reconciled with the requirement imposed by God's perfect goodness, (in Clarke's words) "the necessity of always doing what is best".
Here, conservatism was a matter of joining oneself with necessity; compassion, a way of doing the job as gently as possible.
The necessity of counting doesn't entirely explain pi or primes.
By contrast, leaving behind dependents who would now have no support in the midst of life's catastrophes and would be in want of the necessities of life does cause a 'very natural bite' and stirs tears in the sensible man (25.1 ff).
