The phrase "as he informs us" is correct and usable in written English.
It can be used when referencing information or insights provided by a specific person, often in a formal or academic context.
Example: "The findings of the study are significant, as he informs us about the correlation between diet and health outcomes."
Alternatives: "as he indicates" or "as he points out".
One reason must be that, as he informs us in his preface, he means to address several "constituencies … simultaneously". At first these constituencies seem to be four poets, editors, scholars, and a community of readers but in a slippage we get used to they are narrowed soon to the first three.
(He received just $40,000 for it — ouch! — but, as he informs us, wink-wink, he did invest some of the money in a little outfit called Holiday Inn.) Now the contract of his current chart-topper, Johnny Cash, is about to expire.
And, moreover, it is portrayed with such Teutonic thoroughness that the translator, as he informs us in his foreword, has had to seek the assistance of "authorities in various special fields" for an adequate rendering of portions of Herr Mann's narrative.
In a democracy, allegedly, the people inform the President just as he informs us.
When the man arrives, he informs us -- as indifferently as a cashier wishing us a nice day -- that the sheriff has been notified of our arrival.
While the insufferable Too Cool Wesley Jonathannursesses abandonment issues ("I don't do love," he informs us, though, as we later discover, he does do diapers), the infantile Dog (Chico Benymon) tries to overcome the dual handicap of a short-bus I. Q
As if they were stage directions, he informs us where the act of writing is taking place - often on planes ("I'm only going on like this because we're on the verge of taking off"), at his desk in Holland Park, in hotel rooms in Barbados or Athens or New York.
I can picture the kindly-looking consultant fidgeting at his desk as he gently informed us my wife Joyce was in the early stages of dementia.
"This law is problematic for us in the short term," said Celestin, 14, as he informed drivers that the road was blocked.
As he informed them Saturday, in his victory address, "Welcome back.
