The phrase "a longstanding pattern of" is correct and usable in written English.
It can be used to describe a consistent or repeated behavior or trend that has been occurring over a significant period of time.
Example: "The organization has demonstrated a longstanding pattern of neglecting employee feedback, leading to low morale."
Alternatives: "an enduring trend of" or "a persistent behavior of".
"You're not going to see a longstanding pattern of sadistic behavior from the parent," Dr. D'Urso said.
The meeting followed a longstanding pattern of Mr. Arafat conferring with the Egyptian leader at critical moments in the peace negotiations.
Mr. Karzai, a senior administration official said, "has a longstanding pattern of creating a straw man of America's positions, and rallying people around that.
Mr. Jaua said the activities of the consular officials were part of a longstanding pattern of meddling by the United States government in Venezuelan politics.
In its decision, the N.B.A. cited just two violations, perhaps suggesting that it could not prove a longstanding pattern of conduct.
But Mr. Arpaio and the Maricopa County Sheriff's Office still face another lawsuit, filed by the Justice Department, claiming civil rights violations, based on, among other things, a longstanding pattern of discrimination against Latinos.
Mr. Reiter, who has for years received his medical care at Mayo when possible, says he believes there has been a longstanding pattern on Aetna's part to not pay its fair share of his out-of-network care.
North Korea experts said that the sudden change of tone from Pyongyang follows a longstanding pattern for the North of trying to keep the other side in a negotiation off balance by alternating bellicose and more conciliatory statements.
It is a longstanding pattern, and the amount of official attention paid to the Nanjing massacre has served as a particularly good indicator".The government has used the Nanjing massacre for years as a tool," says Xu Xin, a professor at Nanjing University.
Typically, their misbehavior is only the most recent example of a longstanding pattern that began, ironically enough, in adolescence and illustrates the downside of having an adaptive brain, which can change for the worse as well as for the better.
This ended a longstanding pattern that forced former generations of the royal family to marry only fellow members of "pure" descent.
