"typically have been" is correct and usable in written English.
You can use it to refer to a recurring pattern or to describe something in an objective way, such as a trend in history or a recurring behavior. For example, "Many countries have typically had a monarchy as a form of government."
On busy days, waits typically have been 20 to 30 minutes.
By contrast, voluntary movements of skeletal muscles more typically have been found to be conditionable instrumentally.
In previous years, there would typically have been "only a handful" of such cases in the same period.
He even made small gains among groups that typically have been solidly Republican — whites, conservatives, Southerners, regular churchgoers.
The mothers and children were confused, since this would typically have been the time they prepared for bed.
But another problem is that the courts typically have been more liberal in interpreting some of the rules beyond the strict letter of state statute.
The complaint said Mr. Beeson agreed to waive penalties for Canary that would typically have been charged for short-term trading in its funds.
Chips are starchy tubers which, typically, have been fried twice; they are potatoes from which the water has been forced out.
Employees typically have been trained for three years before arriving here, and will usually work with a more experienced craftsman for another two.
Those efforts, as well as the current ones, typically have been cast as having broader benefits, similar to the way public health programs are portrayed, Mr. Retsinas said.
Since the beginning of the downturn, there's been a shortage of information – no new research, and the closure of various advice services which would typically have been the first to notice an increase in unfair working practices.
