"devote a large portion" is a grammatically correct and commonly used phrase in written English.
It means to give or dedicate a significant amount of time, effort, or attention to something. Example: She devoted a large portion of her life to helping others through volunteer work.
In the early 1970s he began to devote a large portion of time to golf-course architecture.
It's a complaints mechanism" – prompting Barber to say the body was in part effective because "you don't want to devote a large portion of your newspaper to explain why you get something wrong.
These results suggest that at elevated competition levels, cows modify their feeding behavior to consume feed in a shorter period and devote a large portion of their mealtime toward waiting to gain feed access, resulting in reduced daily lying time.
This findings show that the farmers that are landlords are more likely to devote a large portion of their farmland to the cultivation of IRVs.
Like younger firms, you likely want to devote a large portion of your resources to marketing endeavors, but exactly what percentage you select depends entirely on your working capital.
For example, I devote a large portion of the course to woody plant identification, but when I present these plants, I never focus solely on their ecology or biological characteristics.
On the one hand, Chavez has required banks to devote a larger portion of their loan portfolios to mortgages for low-income borrowers.
Tiffany devotes a large portion of her free time to attending live musical performances.
Fox ran headlines online that called Common "vile" and "cop-killer rapper". Sarah Palin weighed in on Twitter, and Sean Hannity devoted a large portion of his show to it.
But Mr. Harris's downmarket show-business background, folksy approach and habit of devoting a large portion of each episode to painting his own, Impressionist-style works have given fresh impetus to a debate that has bubbled away for some time.
But his fellow member was having none of it; as it is, he said, he devotes a large portion of his workday to his investments, and as a result, he feels he is shortchanging both his work and his portfolio.
