The phrase "asserted most of" is correct and usable in written English.
It can be used when indicating that someone has claimed or stated a significant portion of something, often in a context of discussion or argument.
Example: "In his report, he asserted most of the findings were based on solid evidence."
Alternatives: "claimed the majority of" or "stated most of".
To the Editor: Does the international system already have in place, as James P. Rubin asserts, "most of the rules it needs" to achieve global security and realize basic human rights?
Arguments are still raging as to the tax-relief system's actual benefit to the British film industry, with Kick-Ass director Matthew Vaughn prominent among those asserting most of the profits simply go back to Hollywood.
In a video introducing GEBN, vice president Steven Blair, an exercise scientist, asserts: "Most of the focus in the popular media and in the scientific press is, 'Oh they're eating too much, eating too much, eating too much'--blaming fast food, blaming sugary drinks and so on...
The government asserted that most of the money went to the village's schools, but that the men also personally pocketed some.
His lawyers also asserted that most of the information in question had been made public through reports by analysts and the media.
Russian officials asserted that most of the corpses at Dachny were those of Chechen rebels, but as families came to identify bodies, it turned out that more than a dozen were civilians who had disappeared in the last year.
Ramli and Talib 2017 asserted that most of the science teachers are not confident to integrate STEM in science teaching.
Also, the same authors asserted that most of the patients with remnant deposits tended to show progressive resorption over time.
When Leach asserted that most of the rituals are rites of passage, he did not tell us the other types of rituals, but he must be aware of the rite of passage model can explain most of the ritual.
