The phrase "already indicated before" is correct and usable in written English.
It can be used to refer to something that has been mentioned or pointed out previously in a conversation or text.
Example: "As I have already indicated before, the deadline for the project is next Friday."
Alternatives: "previously mentioned" or "already stated earlier".
Mr Darling tried to convince voters that he can manage an economic recovery, albeit a weak one, without too many of them feeling the pinch personally.Hence the strategy, already indicated in the months before the budget, of punishing the unpopular rich.
The commonest reasons were that the families had already indicated their wishes concerning organ donation before a request was made or that brain stem death tests revealed some evidence of brain stem activity and so organ donation was not appropriate.
6. Targeted Ads: A couple years before Election Day, public opinion polling already indicated that a majority of Colorado men supported legalization.
The Senate, where Democrats and Republicans have the same number of seats, is expected to vote before the end of the month; one Democrat has already indicated that she will abstain from voting.
RBS has already indicated that it will.
Congress has already indicated its concern.
Senate leaders had already indicated they would not bring a bill to the floor, upending the White House's hopes for House and Senate consideration before August.
Abortion foes have already indicated that they support Mr. Herrera.
While critics will point out that it is premature to call for higher pay before the inaugural league, one of the highlights of 2016 was that women's AFL already indicated it is a successful product.
Democrats control the Senate, and leaders there have already indicated that they plan to strip out the requirement in the bill to defund Obamacare, before sending it back to the House.
