The phrase "affirms how" is correct and usable in written English.
It can be used when you want to express that something confirms or supports a particular way or manner of doing something.
Example: "The study affirms how effective the new teaching methods are in improving student engagement."
Alternatives: "confirms the way" or "validates how".
Fire Songs stunningly affirms how fertile this project remains, and how urgent as well as striking Harsent's vision has become.
'Because I love medicine, and I love the law.' After discussing various mutilations and their significance, Munoz affirms how 'the principal message is to other cartels.
This is a stunning success rate, which affirms how deeply researchers now understand the underlying biology of aging.
Losing your virginity feels significant because it affirms how you feel about others, but also, crucially, how you feel about yourself.
It's not only a confirmation of how motivated and successful our immigrant population can be, but it affirms how far America has come in making sure both those with disabilities, and those who arrive from other shores, have the opportunity to achieve great things.
What I hope to remind you of is that college is not an arena to affirm how brilliant you are.
Because what that party did last week was affirm how thoroughly it had been hijacked by its extremist wing.
"If this isn't re-affirming how bad my life is going to be because of my injuries, I don't know what is.
Herbert S. Lin, a senior scientist at the National Academy of Sciences who recently jointly edited a report on the Internet and risks to children, affirmed how difficult it is to make secure, compelling sites for children into a successful business.
Google's search and various apps complemented the iPhone perfectly, and the existing Android phones merely affirmed how much better the iPhone was than everything else on the market.
When I realized that I could change my life experiences by affirming how I want my life experiences to be - it liberated me!
