The phrase "able to boost his" is correct and usable in written English.
It can be used when discussing someone's ability to enhance or improve something related to them, such as skills, performance, or confidence.
Example: "With the right training, he will be able to boost his performance in the upcoming competition."
Alternatives: "capable of enhancing his" or "able to improve his".
(Example: If the earner in Schwarz's hypothetical family is self-employed, he may still be able to boost his own 2007 contribution to a pretax retirement account to avoid that punitive 48% tax rate and snag a full stimulus credit).
By placing the bonds in Greenwich Street Municipal Fund and Smith Barney Managed Municipals Fund, Deane was able to boost his returns in 1995 and 1996, helping him to win Morningstar's Fixed Income Manager of the Year award last year.
Streep should soon be able to boost her asking price, especially if her upcoming movie Julie & Julia does well at the box office.
President Barack Obama's popularity in leading Arab countries far outstrips that of the United States, suggesting he could be able to boost goodwill in the region toward his country, a survey showed on Sunday.
An exo expert may be able to boost into the air, then jet down onto his enemy for a Mario-style crush kill.
The BIS seems to acknowledge that central banks remain able to boost aggregate demand.
While that was a disappointment, the company was able to boost its profit to NT$2.3 billion ($76.5 million) after taxes.
The division was able to boost profitability thanks to undertaking a "significant" cost-reduction programme early in 2009.
A healthy and effective Hernández, like the Hernández of old, will be able to boost the Yankees.
Despite regularly producing birds for release, longstanding captive breeding programs have not been able to boost dwindling numbers.
In each case, millions of families were able to boost their largely static incomes with one windfall after another.
