The phrase "accepted that it will" is correct and usable in written English.
It can be used when discussing an acknowledgment or agreement regarding a future event or outcome.
Example: "The committee accepted that it will take time to implement the new policy effectively."
Alternatives: "acknowledged that it will" or "recognized that it will".
RBS has already accepted that it will have to move more of its operations to England, including its registered office, were the vote to go for independence.
Germany has accepted that it will cross the 3% threshold this year; rumours suggest that its deficit could be as high as 3.7%.
Behind the scenes, it is clear that some Tory strategists have accepted that it will be very difficult to build an electoral majority with present trends.
"There were so many years that female riders weren't accepted that it will take such a long time before they are fully accepted.
In recent weeks, Labour has accepted that it will not be able to reverse all the cuts outlined by the government, and Wednesday's announcement will increase the pressure on the party to provide more detail of its own program.
Iran has accepted that it will be subject to a more intense inspection regime than any other country on earth, at least for the first decade of the agreement's lifetime.
Once you accept that, it will never end.
If you accept that, it will be easier to clean the room, otherwise this vicious circle will not end.
Beauty comes from the inside, and if you accept that, it will show on the outside, too!
Yet there is sure to be difficult wrangling in Congress over the next few months, both between the PRI and the opposition alliance and within that alliance; even its constituent parties accept that it will not last long.
Gove wants to force Downhills, which inspectors last year put under notice to improve its performance, to accept that it will become an academy by the end of this month or face the dissolution of its governing body.
