|In formal English style, the structure adjective + a/an (articles) comes after the words as, how, so, too, and this/that, with meaning "so" is commonly used.|
as/how/so/too/this/that + adjective + a/an + noun
How good a singer is she?
I have as good job as Shelby.
Ted is too old a criminal to arrest.
They couldn't afford that huge a house
It was so cold a day that I could hardly get up.
|Take note that this structure is cannot be used without a/an.|
I like your house - it's quite elegant. (NOT I like your quite elegant.)
These employees are too hardworking to let go. (NOT These employees too hardworking to let go.)