The phrase "as vehemently" is correct and usable in written English.
It can be used to describe the intensity or forcefulness of an action or expression, often in the context of arguing or expressing an opinion.
Example: "She argued as vehemently as she could to convince the committee of her proposal."
Alternatives: "with great intensity" or "with fervor".
"On May 1st, his perfect record will be no more," Mosley said, as vehemently as he could.
Bachmann, who is largely DeMint's Tea Party counterpart in the House, condemns gay marriage as vehemently as he does.
Idaho militia members and Branch Davidians challenge social norms as vehemently as any of the record-store clerks, music scenesters and sex workers Powers interviews, and are probably less palatable to the mainstream.
As the historian David Kennedy writes in his definitive book on the period, "Freedom from Fear," Roosevelt "had little to lose by alienating the right," including those in the corporate elite, with such invective; they already detested him as vehemently as the Business Roundtable crowd does Obama.
This does not prevent her from despising and opposing the Nazis' actions as vehemently as anyone else.
It should be said that most of the avowedly Behaviorist theorists and researchers who succeeded Watson (who had given up his academic career by 1920, and published his last significant psychological work in 1930) did not reject talk of inner psychological processes quite as vehemently as he had done.
Hoffman enjoyed the song and wrote "the vibe is rangy and exultant as blissful and bemused as the vehemently unpretentious [cover] shot of Lindstrøm".
An experienced principal recently told me that she's never seen the further education sector come together as loudly and vehemently as it has in recent months.
Over the years, she tussled with members of her own party, whom she often disappointed, and Democrats, with whom she just as often, and vehemently, disagreed.
We as rebels vehemently oppose the of kidnapping of the Lebanese journalist.
One defendant, Milan Djurecic, known as Miki, vehemently denied Mr. Jekic's accusations.
