The phrase "able to discuss it" is correct and usable in written English.
You can use it when indicating someone's capability or readiness to engage in a conversation about a specific topic.
Example: "I hope you are able to discuss it during the meeting tomorrow."
Alternatives: "capable of discussing it" or "prepared to talk about it".
It was something that I can't ever forgive myself for and I've never been able to discuss it with Saul.
It was a big win for supporters of privacy and constitutional liberties, even though Senator Udall and I weren't able to discuss it publicly until two years later.
"No one is immune from cancer and only by opening up a dialogue on the subject will the taboo surrounding it be diluted and more people will feel able to discuss it, and be more aware of early warning signs".
To be able to discuss it in polite company, economists renamed it "maximization of utility," and built a theory of the world that everyone benefits when we seek to maximize our own individual welfare.
"While Ryan has impeccable character and no previous history, unfortunately, because of the process we have to maintain confidentiality and are not able to discuss it any further, but we are confident that he will ultimately be exonerated," he said.
Nowadays, no one is sure whether Partisan Review still exists (it does), and it is impossible to imagine that anyone once rushed to read the latest issue so as to be able to discuss it at the the Trillings' next cocktail party.
In fact, Onfleet isn't able to discuss its largest customer publicly — though it can say it has facilitated more than 100,000 deliveries this year.
As far as I understand, it arrived in our pigeon holes yesterday and I got it this morning, so we have not really been able to study it thoroughly enough, and we have not been able either to discuss it with the various actors involved at home in UN emergency activities.
Parents who read The Giver with their kids will be able to discuss what it would be like to live without disease or pain or crime or wars, and whether such a utopia is actually in some ways dystopian, because without challenges and adversity and failures, we are not fully human.
I occasionally miss not being able to discuss books, but it doesn't bother me as I once thought it would, and this has made me wonder: what did I think were the hypothetical ball-park benefits of having a partner who read books?
Above all I'm relieved to finally be able to discuss the show – it's been a nightmare trying to save the surprise.
