A post that talks about the usage of "complement" uses this title
Is "complement" with fact, opinion or both?
in this pattern is A with B
Which was trying to ask whether the word "complement" should be used only with fact, opinion or both.
Is it clear and natural to say it that way?
Note: "complement" there is not used as a term. In other words, "complement" in that context is with the meaning of "Something that completes, makes up a whole, or brings to perfection", rather than a Grammar term.