The phrase "also acknowledged that certain" is correct and usable in written English.
It can be used when discussing recognition or acceptance of specific points or facts in a statement or argument.
Example: "The committee also acknowledged that certain factors contributed to the project's delay."
Alternatives: "also recognized that some" or "also admitted that particular".
It is also acknowledged that certain speaker variation occurs in the choice of anaphoric reference form, as the result of different perceptions of the semantic connectedness of clauses and sentences within a narrative.
She also acknowledged that certain aspects of their relationship would mirror Becky and Steve's relationship, in the sense that when Kylie is with David, a "loved up" nicer side to Kylie surfaces.
Asked at the debate if the legislation was a net positive or a mistake, Clinton answered that there were some positive aspects like the Violence Against Women Act, but also acknowledged that certain provisions overextended prison sentences, which heavily impacted communities of color.
Respondents also acknowledged that certain subpopulations of potential users might be particularly interested in or appropriate for an LAI.
We also acknowledge that certain assumptions and speculations were made when deriving the harmonized 'five diamond' framework, its performance dimensions and strategy linkages, all of which may be influenced by researcher and information bias.
Yet they also acknowledged that with a military operation seeming ever more certain, and with opposition in their countries hardening, a qualitatively new confrontation was taking shape.
It is also acknowledged that our approaches could be enhanced and that technical improvements could be made in certain aspects of the work to enhance efficiency, particularly as demand to use the data increases.
But the adviser also acknowledged that "McCain has the ability to be more helpful to us than maybe anybody else" in certain states.
Some coaches said they would be in favor of using a standard basketball nationally, but they also acknowledged that there would probably be resistance to uniformity because of the contracts that bind universities or coaches to certain brands.
It is also acknowledged that in actual decision making knowledge is often ignored and used in a specific way or even manipulated, to legitimize certain viewpoints or decisions (Flyvbjerg 1998, 2001).
