The phrase "all three concerns" is correct and usable in written English.
You can use it when referring to three specific issues or worries that have been previously mentioned or are being discussed.
Example: "In our meeting, we need to address all three concerns raised by the team regarding the project timeline."
Alternatives: "all three issues" or "all three points".
The volumes of users reported by all three concerns suggest that more Americans are willing to use the Internet to prepare their tax returns.
A fifth of all voters shared all three concerns.
But one must also keep in mind that all three concerns — metaphysical, epistemological, and practical — are intertwined and inseparable in Kûkai's thinking.
I'd argue all three concerns are strongly correlated.
The patents of all three concerns were cross-licensed.
All three concerns (bladder, sexual and bowel function) was the most commonly reported combination of side effects that influenced treatment decisions in our sample (33%), followed by bowel function (27%), and then no influence of any of the three potential concerns (24%).
There are three major theories about scientific progress, and all three concern knowledge creation.
Our investigative team reviewed the script and refined it to ensure all seven "concerns" were adequately addressed by either patients and families or health professionals (which included a transplant nephrologist, transplant social worker, general nephrologist, and dialysis social worker).
But there are good responses to these three concerns, all centering on the crucial point that as Theodosius Dobzhansky (1973) rightly stated—"nothing in biology makes sense except in the light of evolution".
The emotional and moral heart of all three books concerns an understanding of the flawed, even criminal self.
The Securities and Exchange Commission said that all three investment concerns violated regulations intended to protect investors in some of the financial markets' most speculative arenas.
