The phrase "already been indicated" is correct and usable in written English.
It can be used when referring to something that has previously been pointed out or mentioned.
Example: "As previously discussed, the necessary steps have already been indicated in the report."
Alternatives: "previously mentioned" or "already noted".
It has already been indicated that recursive function theory is, in effect, the study of certain idealized automata (computers).
Instead, he summoned Wall Street's chief executives to the Fed, where he said emphatically that there would be no government assistance, as had already been indicated to the press.
"The share-price reaction shows there's some optimism that he can deliver.. Some restructuring had already been indicated... two weeks ago, the plan is probably not any better or worse than people had expected but what we have now is some concrete numbers, so it's eliminating uncertainty".
Tesco boss Dave Lewis will also be updating the market on his plans to fight back against falling sales and profits, and it is hoped he will confirm an improvement in trading which has already been indicated by market share data from analysts at Kantar Worldpanel.
These functional groups have already been indicated by the FT-IR result.
This has already been indicated by and obtained with the scalar product (12).
A Merrill Lynch survey of chief information officers last year confirmed what the market has already been indicating: Software sales are being awarded to the largest companies.
And Boehner has already been indicating which way the first stage is going to happen.
Protein names of already characterized bZIP proteins have been indicated.
Phosphosites predicted but already experimentally determined are indicated underlined and in bold.
(The mutation presumed to have occurred second in an already variable background is indicated in bold).
