"not only determines" is correct and usable in written English.
You can use it to emphasize that something has multiple effects or implications. For example: "The decisions we make today not only determines our successes tomorrow, but our well-being for years to come."
For a great hall not only determines how music is heard, but also helps determine what music is written.
In most Muslim nations, the state not only determines where mosques are built, but what the clerics inside can say.
This last was common in Sorrentino's books: "Form not only determines content," he once said, "but form invents content".
"It not only determines how mental disorders are diagnosed, it can impact how people see themselves and how we see each other," Alan Schatzberg, president of the American Psychiatric Association, which publishes the guide, told reporters.
Our ability to focus on a task not only determines whether we get things done at work, but also helps to influence whether we feel good about what we do.
Phytoplankton primary production not only determines the amount of fish in the sea for us to harvest, but also the numbers of polar bears and whales, and seabirds in the sky above.
The choice of the Canadian electorate not only determines who shall govern Canada but also, by deciding which party receives the second largest number of seats in the House, designates which of the major parties becomes the official opposition.
Thus, ligand binding not only determines the direction but also the extent of the conformational change.
The proposed methodology not only determines the breathing crack characteristics but also quantifies associated uncertainties of the inferred values.
Setup planning not only determines features must be machined in each setup but also defines locating datum for each setup.
