The phrase "as a commendable" is not correct and usable in written English as it is incomplete and lacks context.
It could be used in a sentence where you are describing something that is praiseworthy or deserving of commendation, but it needs to be followed by a noun or a complete thought.
Example: "As a commendable effort, the team worked tirelessly to meet the project deadline."
Alternatives: "as an admirable" or "as a worthy".
Customers in the neighborhood counted on Endicott for a quirky stock of general literature and books on the arts; the store featured a knowledgeable, if sometimes twee, sales staff, as well as a commendable lack of coffee products.
The underground electronic producer Powell has caught some sun in the past year with a couple of playful/terrifying singles, as well as a commendable willingness to butt heads with his heroes like the dance-despising Nirvana producer Steve Albini.
Like Pope Benedict before him, Juan Carlos's decision teaches us that in modern times, abdication may be a more dignified response to age and infirmity than waiting for an inglorious passing, legitimising Lear's "crawl toward death" as a commendable motive for resignation.
Reliability is a popular concept that has been celebrated for years as a commendable attribute of a person or an artifact.
Eurogamer's Kristan Reed called Born from a Wish "more like a demo than anything", while Fielder described it as "a commendable extra".
The soon-to-be presidential nominee of the Republican Party has praised Ryan's plan as a commendable product of the "intellectual leader" of Congress.
A couple of weeks later, I heard from James: the boudin at Bubba Frey's store was, as we suspected, excellent- a commexcellent- and placommendable" Jameseconde, "but still not with the transcendent splacel toste"..
Starbucks is a very diverse company, and reports that 40% of their employees as minorities – a commendable number.
As for the male lead, Sam Claflin as Will does a commendable job in a role that has him do essentially everything just from the Adam's apple up.
Secondary roles were capably handled: Joel Sorensen was effectively oily as Goro, the marriage broker, and Luthando Qave, a young South African baritone, had a commendable debut as a regal Yamadori.
The Ministry of Energy's viewpoint was endorsed by the Australasian Manager of Associated Octel, who described Lead in Gasoline as "a most commendable document" [ 40].
