The phrase "and probably would become" is correct and usable in written English.
It can be used when speculating about a future possibility or outcome that is likely to happen.
Example: "If we continue to invest in renewable energy, our city and probably would become a leader in sustainability."
Alternatives: "and likely would turn into" or "and possibly would evolve into".
There was no statistical difference between Aurélie and Marie in terms of call-backs from the firms, although Aurélie did better and it probably would become significant if the number of applications were greater.
Under these conditions, there would be no zone refining, and the interface probably would become dendritic or branching in shape.
It also had five possible response options, with them being: (1) certainly would become a teacher, (2) probably would become a teacher, (3) chances about even for and against, (4) probably would not become a teacher, and (5) certainly would not become a teacher.
Should Saddam conclude that a U.S.-led attack could no longer be deterred, he probably would become much less constrained in adopting terrorist actions.
"Should Saddam conclude that a U.S.-led attack could no longer be deterred, he probably would become much less constrained in adopting terrorist action," it continued.
But the agency reported that if Iraq were to conclude that an American attack could no longer be prevented, Mr. Hussein "probably would become much less constrained".
I was a model Communist Pioneer and probably would have become an enthusiastic member of the Communist Youth if the government itself had not created the conditions to open my eyes -- and those of my generation -- to a new reality.
Without Ernst Rohm's million-man army of National Socialists called the SA, Hitler wouldn't have had the base of support essential to his early successes and probably would've become just another angry guy shaking his fist at the sky, muttering about the "injustices" of the world.
