The phrase "are indeed able to" is correct and usable in written English.
You can use it to emphasize someone's capability or ability to do something, often in a formal or persuasive context.
Example: "With the right training and resources, our team members are indeed able to achieve their goals and exceed expectations."
Alternatives: "are certainly capable of" or "are truly able to".
"We know many men with such are indeed able to conceive naturally.
Neil Chesanow Montvale, N.J., Aug. 9, 2007 To the Editor: As a frequent commuter on the trams in Zurich, I can confirm that mass transportation systems are indeed able to develop effective ways to communicate problems.
Technically, the F.D.A. does not regulate the practice of medicine, so doctors are indeed able to use approved drugs and devices for unapproved purposes when they deem it appropriate.
Over 50% of "blue collar" homes were in the 11 books or more category, suggesting that children whose families value books – regardless of income – are indeed able to benefit more from school.
And it seems that some galaxies are indeed able to maintain a youthful appearance by sucking great clouds of the stuff in from intergalactic space.According to Felix Lockman of America's National Radio Astronomy Observatory, the Milky Way, humanity's home galaxy, is one such vampire.
It is observed that the previously proposed methods are indeed able to separate the range of conditions tested on machines with different dynamic characteristics.
She is, in short, a wondrous character -- a girl who, metaphorically at least, is indeed able to walk on water.
But the charismatic Mr. Kerr was indeed able to convince a distiller to make a tequila the way he wanted it.
If Mr. Daldry is indeed able to steer clear of Oscar talk, he may be the only one in Hollywood doing so.
Coolidge was indeed able to "swing it," but in a world that we have since — gradually, deliberately, and with a fundamental bipartisanship — exchanged for another.
I found out that the college was indeed able to handle PC's as well as Macs, and the person I talked to recommended against a laptop, which costs more and does less than a desktop.
