The phrase "has long motivated" is grammatically correct and can be used in written English.
It typically describes a long-standing source of motivation or inspiration for someone. Example: The beautiful landscapes of her childhood home have long motivated Emily to pursue a career in landscape photography.
Fear of Trude, you might say, has long motivated New York's preservationists.
The study, by groups that advocate campaign finance reform, found that the so-called pay-to-play system that has long motivated contributions to candidates at the state level has filtered down to the local level, with gifts to mayoral, town council and even school board candidates skyrocketing over the last 10 years.
The 14th Amendment to the U.S. Constitution guarantees citizenship to every person born on American soil, a fact that has long motivated foreigners from all over the world to give birth in the U.S. The conversation about immigrant families in the U.S. is typically centered around people from Latin America seeking economic opportunities in the States.
Mr. Jacobs contends that Mr. Feeney has long been motivated by personal interest instead of public service.
Beyond that, Mr. Koolhaas has long been motivated by the desire to counter the oedipal impulse that pervades his profession, tending to emphasize continuity over rupture.
On one hand, the valley has long been motivated by what the author Michael S. Malone called "The Big Score" -- or more simply put, greed.
Human innovation has long been motivated when we find ourselves on the precipice.
Thus, understanding the genetic basis of why a certain pathogen causes disease in its host plant instead of others has long intrigued and motivated plant pathologists.
In Egypt, Saudi Arabia and elsewhere, Islamist terrorists "have long been motivated by their grievances against the authoritarian states in which they live".
But a reconstruction of the decision-making involved in the plan shows that as with the decision to protect the Aleutian Islands, both the administration and its Republican rivals have long been motivated by domestic political calculations as well as by strategic concerns.
Like many dads I know, I've long been motivated in all aspects of my life by my love for my children -- and my desire to make the world better a better place for them, my grandchildren and my great-grandchildren.
