The phrase "a theme that could" is correct and usable in written English.
It can be used when discussing potential themes or ideas that may be explored or developed further in a piece of writing or discussion.
Example: "In this novel, there is a theme that could resonate with many readers, particularly the struggle for identity."
Alternatives: "a theme that might" or "a theme that has the potential to".
"It being China, we thought it was a theme that could materialize again," Tom Caraccioli said.
Teresa Threadgall at the theatre conceived of the idea, seeing boxing as a theme that could link dance with sport, and Newcastle with Cuba.
Robert DeLong, a Great Falls, Mont., hunter who won a license, sounded a theme that could be heard at any suburban Whole Foods.
The Hollywood Reporter deemed it "narratively challenged" and zeroed in on a theme that could turn off mothers: "If you're too small or weak or otherwise incapable of greatness, you have a shot to win if you're juiced".
Under the rubric "Strangers," Mr. Phillips, along with the center's chief curator, Brian Wallis, and their colleagues Carol Squiers and Edward Earle, developed a theme that could encompass a wide variety of approaches in contemporary photography.
Mr. Gingrich alluded to his financial shortcomings at an appearance on Tuesday night in Columbus, though he used it to attack his main rival in an area that is a sensitive spot for Mr. Romney — his ties to Wall Street — a theme that could resonate in a state where many manufacturers have struggled.
He went further on Thursday night, using his acceptance speech to add detail to his promises of hope and showcase a new theme that could find resonance with Democrats, new and old, and a broader range of Americans.
Traveling the length and breadth of India for the book, I was searching out differences and similarities in Indian wedding traditions, while trying to find a single theme that could explain the essence of this grand, colorful and fantastic celebration.
It has never been among the most popular of his symphonies, and much of the criticism of the work's structure has been levelled against the last movement, with its brazen, almost post-modern collation of styles, including a C major theme that could have come straight out of Wagner's Mastersingers.
It has been difficult to identify a unifying biological theme that could be leveraged for therapeutic intervention.
The government's shift could yet turn the Syrian issue into a hotly debated election theme that could even influence the outcome of the poll in a month's time.
