The phrase "able to establish much" is correct and usable in written English.
It can be used when discussing someone's capacity or capability to create or set up a significant amount of something, such as relationships, evidence, or understanding.
Example: "Despite the challenges, she was able to establish much in her research, contributing valuable insights to the field."
Alternatives: "capable of creating a lot" or "able to set up a significant amount".
But with no political base, Mr. Kabila was never able to establish much authority for himself.
iiNet were interested in the tool's reliability – perhaps trying to draw links to previous international cases of grandmothers, dead people and printers being identified – but weren't able to establish much doubt about it.
American strategists said they had studied earlier battles with insurgents in Falluja, where troops have never been able to establish much of a foothold, and Najaf, which was taken from Shiite militiamen only after a grinding and costly struggle, and decided on an aggressive and relentless strategy that proved successful in Samarra.
The barriers to entry in any given market are so high that the only way insurers have been able to establish much of a foothold where they don't already have a presence is to acquire one or more existing companies.
Further, because Mr. Bush faces no rival for nomination, he was able to establish his campaign organization much later than most of the Democrats seeking his job.
As I noted here recently, age discrimination claims filed with the Equal Employment Opportunity Commission were at a record high in 2008, and researchers have been able to establish that it's much harder for older workers to land job interviews.
He encountered [his brother], a person he never anticipated encountering, someone who sees him for who he is, accepts him as such, and he really has no choice but to do him in... he's still reeling from that, and any footing he's able to establish for himself is pretty much immediately pulled out from under him".
She hasn't been able to establish herself over the years as much as others".
All that being said, this was a strong pilot, one much more able to establish nuance, tone, atmosphere and character than a 42-minute pilot would have been able to do.
The legislature appointed a committee, earlier proposed by Wheelwright, and through much effort was able to establish a peace.
Goes to show that the Steelers weren't able to establish a running game all season, and how much it was missed.
