The phrase "always manifested itself" is correct and usable in written English.
It can be used to describe a consistent or recurring presence or occurrence of something over time.
Example: "The artist's unique style always manifested itself in her paintings, making them instantly recognizable."
Alternatives: "has consistently appeared" or "has always been evident."
"It must sound completely demented," she added, "but new repertory has always manifested itself to me.
It hasn't always manifested itself in the kind of agreements that I'd like to see between Democrats and Republicans.
It hasn't always manifested itself in the kind of agreements that I'd like to see between Democrats and Republicans, and so I think all of us have responsibilities to see if there are things that we can improve on.
Unlike his more conservative siblings (and older and younger brother and one sister) he was a bit too disorganized for the world most of us inhabit, and while he had a bit of an alpha male attitude, it always manifested itself in ways that could help others.
Technological advancements that make work-anywhere possible for those employees hasn't always manifested itself in greater flexibility, however.
In the previous reports, glioma always manifested itself with disordered pathways which regulated proliferation, survival, invasion, and angiogenesis.
Three brothers coming back to their hometown for their mother's birthday reveal themselves to be deeply unhappy in various ways, and the unhappiness somehow always manifests itself in violence.
More important was Don's hallucination (similar to Betty's a fortnight ago) in which his guilt (for tonight, for always) manifests itself in a vision of his father telling bawdy jokes and calling him a bum – "What do you make?
If you generate a powerful thought and let it out, it will always manifest itself.
But what they all have in common is a deep engagement with their Jewish identity, which often (though not always) manifests itself through participation in the organized Jewish community.
In the context of the ap gene and in a y background, mini-yellow activity always manifests itself in phenotypically yellow+ wings.
