"properly concluded" is correct and can be used in written English.
You can use it when referring to actions or ideas that have been concluded in the correct or expected way. For example: After the vigorous debate, the motion was properly concluded with a majority vote.
The committee properly concluded that he should be admonished for his staffers' blatant misconduct.
He's made an instruction that until the processes of the review at the ABC is properly concluded that he doesn't want people from cabinet on Q&A.
After a closed investigation of nearly two years, a bipartisan subcommittee has properly concluded that there are grounds for charging the congressman with as yet unspecified violations.
The ethics office properly concluded that all five should have known, since corporate banners and hospitality freebies were as plain as the sand and sunsets.
Further, I believe that Judge Sauls properly concluded that there was no authority to include the Palm Beach County returns filed after the explicit deadline established by this court.
Regarding Miami-Dade County, I find that the trial judge properly concluded that the Miami-Dade Canvassing Board did not abuse its discretion in deciding to discontinue the manual recount begun on Nov. 19, 2000.
Nonetheless, we cannot properly conclude that the I.N.S. policy is totally unreasonable in this respect.
The judge said that Brooks's barrister had conceded in the trial that the court "could properly conclude that Mr Brooks did bring suspicion upon himself".
The review of the Metropolitan police's handling of the rape allegation concluded that "any reasonable investigator could properly conclude that the allegations made by the complainant were far from fanciful and continued to be proportionate and justified".
As the book properly concludes, this war is, in fact, "a war for drugs and of terror".
Also in case you needed reminding, this article was about the use of filler and I assure you that the previous three sentences were absolutely necessary to properly conclude this article and every word in this paragraph was written with brevity as a major consideration, we would by no means wish to waste any of your time, after all that would largely undercut the major theme of this article.
