The phrase "had some insight" is correct and usable in written English.
For example, you could use it in a sentence such as: "The professor had some insight into the underlying causes of the illness."
It was a word into which Nakusii had some insight.
"I won't say it was because I had some insight to avoid bogeys.
But on this evening, he concluded the session well before midnight, with an admonition that suggested he had some insight into the insidiousness of both work and play.
La Streisand took a lot of public goofing for her comment, but she actually had some insight into the slightly squirrelly persona of young Andre.
There is a cast-off joke about how black people never vote Republican, and it gets a good laugh, but Blackish already did an entire episode making fun of that very thing and the episode was keenly observed, had some insight into the issue, and was really freaking funny.
Although he had not published or worked in education before moving to Chicago, some of Dewey's letters to his wife indicate that he had been thinking about starting a school before he came to Chicago, and Dewey had some insight on educational matters from Harris. 2. Seigfried discusses Dewey's support of feminist causes in "John Dewey's Pragmatist Feminism" in Larry Hickman, ed.
"I had studied American politics, and had some insights.
Ty Burrell, who plays Phil Dunphy, had some insights into the ways sitcom characters operate.
The recent Chakrabarti inquiry into racism, Islamophobia and antisemitism in the Labour party had some insights into how discrimination works.
From an early age, I had some insights as to what they were doing right and maybe what they weren't doing right.
If only Ellie and Beth had let him get a word in edgeways during that final confrontation scene we might have had some insights.
