The phrase "a combination of primary" is correct and usable in written English.
It can be used when discussing elements that are mixed or blended together, particularly in contexts like art, design, or education.
Example: "The painting features a combination of primary colors that create a vibrant and dynamic effect."
Alternatives: "a mix of primary" or "a blend of primary".
The investment was a combination of primary and secondary transactions.
It says this "may be a combination of primary and secondary incomes".
The research methodology used is a combination of primary data collected through a visual survey.
In Maryland and some other states, convention delegates are selected by a combination of primary voters and members of the state party committee — constituencies overwhelmingly supportive of Mr. Trump.
Currently, the Center is a combination of primary care and acute care space that includes a task trainer room, a large assessment lab, two fully equipped examination rooms, and four immersive simulation rooms served by a shared AV/computer room.
The chaotic, packed pictures by Uma Krishnaswamy (a different person from the author), a combination of primary colors and black-and-white line drawings, have an old-fashioned, outdated feel to them.
Takeaway.com has offered 7,608,696 shares, for a value of €328 million ($368 million) in the offering, in a combination of both primary and secondary shares (€175 million primary, €153 million secondary) ahead of the company starting to trade.
In both use cases, we applied first phenotype annotations determined during the primary screens, and after that a combination of the primary screen annotations together with the predictions for secondary phenotypes.
Therefore, the strength of a country's primary care system is determined by the degree of development of a combination of core primary care dimensions in the context of its health care system [ 11, 12].
"What I'll say to our partners is that we are putting together a combination of a primary budget surplus and a reform agenda," he said.
In Westchester we have a combination of both primary care and specialty sites, with our largest investment in specialty care in women's health".
