The phrase "about everything then" is correct and usable in written English.
It can be used in a context where you are summarizing or reflecting on a discussion or situation that encompasses a wide range of topics or issues.
Example: "After our long conversation, I realized we had covered just about everything then."
Alternatives: "regarding all matters then" or "concerning everything at that point".
They sit, they talk about everything — then they eat their picnic.
"They argued about everything, then one day they got guitars and formed The Kinks.
If I was utterly honest about everything then it wouldn't be very entertaining.
He said: "If you and I agreed about everything, then one of us is unnecessary".
We have this radical idea that if I don't make an absolute, free choice about everything, then I'm not a real person; I surrender to someone else's power.
In every partnership there is one person who makes the decisions, if not about everything then at least in certain areas of life.
Yet, one of the most common complaints I hear from my peers and colleagues is, "My clients don't care about sustainability". If it includes everything, then you're saying your clients don't care about anything.
In this book, which remained the standard text on mining for two centuries, Agricola reviewed everything then known about mining, including equipment and machinery, means of finding ores -- he rejected the use of divining-rods and other such magical means -- methods of surveying and digging, assaying ores, smelting, mine administration, and even occupational diseases of miners.
It took him only a few weeks to learn everything then known about tackle play the captain of that 1900 team, a Mr. Roller, says that "George always was a strategist"—and after that he outplayed his opponent on every eleven V.M.I. met.
It took him only a few weeks to learn everything then known about tackle play — the captain of that 1900 team, a Mr. Roller, says that "George always was a strategist" — and after that he outplayed his opponent on every eleven V.M.I. met.
"You get complacent about everything, and then you're O.K. with being a loser or O.K. with being second-rate.
