The phrase "again when it began" is correct and usable in written English.
It can be used to refer to a situation or event that is being revisited or repeated from its starting point.
Example: "I found myself reminiscing about the summer of 2010, again when it began to feel like everything was changing."
Alternatives: "once more at the start" or "back to the beginning".
Again, when it begins tilting to the opposite side, commence passing side 1 through the loop again to re-straighten.
Sometime the car drove so adeptly that I had to be reminded to pay attention, and a couple of times I was asked to retake control once when it seemed as though the car might travel extremely close to a parked vehicle, and again when it mysteriously began turning to the left while we sat in traffic on a bridge.
That generator failed two hours later, and the news service was again down from 3 44 P.M. to 4 03 P.M., when it began working again, a Dow Jones spokesman said.
The interrupted silence held for a little longer and the talk, when it began again, was different.
Likewise the average age at first marriage decreased until the 1990s, when it began climbing again.
Bidzina Baratashvili, the station's general director, said he expected that when it began broadcasting again, it would attract public sympathy.
HPA genetic testing of patients in England and Wales affected by norovirus last October, when it began circulating again, identified Sydney 2012 as one of a number of strains that were affecting a growing number of patients, which also included another strain called New Orleans 2009.
It's mainstream culture, it's as big as it's ever been, and I think now we need to just show people again that there was an underground when it began".
But the show picked up when it began to rain again with just over 20 laps left.
The gonorrhea rate had been on the decline until 1997, when it began to increase again.
