The phrase 'has been fierce for' is correct and usable in written English.
You can use this phrase to indicate that competition for something has been intense. For example: "The competition for the limited spots in the prestigious university abroad has been fierce for the past few years."
Competition has been fierce for the past decade, both from local manufacturers attacking the lower and middle segments of the market and, more recently, from Samsonite, which has set up a factory to cater to the upper end.
In the last couple of years, the competition has been fierce for the few dozen kindergarten slots available at any given private school, places like Spence, Collegiate, Nightingale-Bamford, Trinity, Brearley and Dalton, to name but a few.
Competition in the Android OEM space has been fierce for years and there's no signs of any slack appearing so HDM faces a steep challenge to make any kind of dent here.
Mr. Holbrooke said today that opposition to United States demands in the United Nations had been fierce for months.
Still, the debate over whether Zenyatta deserved to win Horse of the Year had been fierce for the past two months and had been waged across every social network and media platform.
It said fighting in the area had been fierce for several days and that "the situation is unclear and fluid, with mechanized weapons traveling in all directions". NATO took command of the air operation from the U.S. last week after American, British and French airstrikes halted Kadafi's troops from advancing on Benghazi, the opposition's de facto capital.
In recent weeks there has been fierce fighting for control of towns along it, such as Qara, Deir Attiyah and al-Nabak.
Competition for places has been fierce and that's got to be good for Irish cricket".
But few people intend to spend nine syllables on a bridge, so the fight for nicknames has been fierce.
British Athletics' performance director Neil Black said: "Competition for places has been fierce.
Margaret Richiefnexecutive executive of Aircom International, a telecommunications consulting firm, said that the partnership was significant because "these companies have been fierce competitors for the last 20-odd years and now they're talking".
