The phrase "and a very considerable" is correct and usable in written English.
It can be used to emphasize the significance or extent of something in a formal or descriptive context.
Example: "The project required a significant investment of time and a very considerable amount of resources to achieve success."
Alternatives: "and a substantial" or "and a great deal of".
Here every kind of Japanese curio may be purchased, and a very considerable trade is done.
The Australian Norman Von Nida, who has died at the age of 93, was a remarkable man and a very considerable golfer who just failed to reach the very highest levels of the game.
His collection, now on display at the Ashmolean in Oxford, is not only the product of an artist's eye, and a very considerable one at that, but also one who has collected over the decades at an ever more refined level.
His collection, now on display at the Ashmolean in Oxford, is not only the product of an artist's eye, and a very considerable one at that, but also one who has collected over the decades at an ever more knowledgeable and refined level.
He organized his own faction, named the Hillsmen, a group that included noble families from his own district, the eastern part of Attica, and also a very considerable part of the growing population of the city of Athens.
Debt and detinue covered a very considerable area of informal contract law, the sale of goods, bailments and loans of money.
This student organisation was quickly taken up by the isolationists in the Congress and Senate, and grew into a very considerable national organisation.
In addition to sacred and secular works, a very considerable number of compositions, many of them choral, were written for great occasions of state.
The technologies developed are now increasingly used and thus offer a very considerable potential for quickly increasing food production from the Vertisol soils of the Ethiopian highlands.
Instead it let the city staff, the City Council and the Planning Commission spend a very considerable amount of time and effort believing that the city could acquire the Domanskis property.
In striking contrast to the immediately preceding period, European Jewish philosophers in the 13th century and later frequently devoted a very considerable part of their treatises to discussions of the opinions of other Jewish philosophers.
