The phrase "skill has grown" is grammatically correct and is commonly used in written English.
It can be used in various contexts where someone's ability or proficiency in a particular skill has improved over time. Example: "After years of dedicated practice, her skill has grown tremendously, making her one of the top performers in the industry."
The proportion of American workers doing jobs that call for complex skills has grown three times as fast as employment in general.
The belief that schools are failing to nurture creative skills has grown in recent years.
Mr. Sadr's willingness to negotiate represents a significant shift from his stance in 2004, when he ordered his militia to fight to the death in the holy city of Najaf, and suggests that his political sophistication and strategic skills have grown in the last two years.
Because it is based on a richer, more interesting book -- so far Ms. Rowling's novelistic skills have grown, along with her ambitions, with each successive volume -- and partly because the director shows more dexterity and imagination of his own, "Chamber of Secrets," which opens nationwide today, is a little better than "Sorcerer's Stone".
Based on a systematic analysis of the occupational structure in USA and Finland, Malaska argued that the proportion of tasks requiring human interaction skills had grown faster than the proportion of technical tasks.
And while her acting skills have grown, so has her flare for fashion.
One might expect that the cetaceans' presumed knife-wielding and mine-sniffing skills have grown a bit rusty in the interim.
C.K.'s filmmaking skills have grown by leaps and bounds, and over three seasons, he's likewise honed his skills as a storyteller.
"The children have become much more social and their communication skills have grown incredibly, both verbal and nonverbal," he told The Mighty.
In fact, her skills had grown so much that Kunal made the decision to hire her as part of the Bulls team.
