The phrase "gap becoming" is correct and usable in written English.
You can use this phrase when talking about a gap that is in the process of becoming significantly larger, or when referring to a difference between two things that is increasing. For example, "The gap between wealthy and poor countries is becoming larger every year."
He calls it the "Brazilian effect": … when public higher education cannot keep pace with growing public demand for access and programs, governments often allow [for-profits] to rush in and help fill the gap, becoming a much larger and sometimes dominant provider.
There lies the explanation for all the "prudence" and clandestine attempts at redistribution – although, given the tendency of globalised capitalism to widen the gap between rich and poor, it was often a case of preventing the gap becoming worse rather than actually narrowing it.
That means that instead of being distorted by the impact of millionaires and billionaires becoming still richer and the wealth gap becoming still wider, using this data gives analysts a sense of the experience of the average household in any given country.
The price and revenue gap between the most and least expensive brands has increased since 2001, this gap becoming more marked since ULP brands were introduced in 2006, as their real price has remained virtually static.
The gap is becoming glaring.
This gap is becoming ideological.
A gap was becoming apparent, though, between Palestinian expectations and Israel's stated intentions regarding what such a meeting would cover.
"Through spay, neuter, transfer and adoption programs, we think New York City can close the gap toward becoming a 'no-kill community' by 2015," said Matthew Bershadker, the president and chief executive of the American Society for the Prevention of Cruelty to Animals, one of 150 rescue groups and shelters that make up the Mayor's Alliance for N.Y.C.'s Animals.
In the hour we go from personal reflections – that death's no more worthy of thought than regrets; that being a grandma feels like falling deeply in love again; that high heels are best avoided in later life – to the universal: we're in a time of financial and environmental crisis, and we need to work together, so that the "generation gap" is becoming meaningless.
In China, the same as in other countries, the wealth gap is becoming wider.
A distant relative of this technology argument is that the income gap is becoming permanent and aggravated because IQs are becoming more polarized.
