The phrase "a year of intensive" is correct and usable in written English.
It can be used to describe a period of focused and rigorous activity or study over the course of a year.
Example: "After completing a year of intensive training, she felt fully prepared for the competition."
Alternatives: "a year of rigorous" or "a year of focused".
When my bosses offered a year of intensive language training, I jumped at the chance.
After a year of intensive work and widespread consultation its recommendations are now publicly available.
After more than a year of intensive work and consultation, a highly respected independent commission determined that it does.
The ESA selected the crew from thousands of highly qualified applicants, and put them through a year of intensive training.
After little more than a year of intensive discussions, McDonald's Restaurants of Canada concluded its agreement in April of 1988.
If a year of intensive research, legislative draftsmanship, and political lobbying failed to result in health-care reform, it did much to promulgate the so-called Hillary problem.
Even the most prolific novelists require a full year of intensive work to produce a book.
Students enrolled in the Environmental MPA Program are awarded a Master of Public Administration degree from Columbia University's world-renowned School of International and Public Affairs after a single year of intensive study.
New York, like other states, follows guidelines from the National Institutes of Health that say only people who will be available for a full year of intensive care should be treated.
A year of recuperation and intensive speech therapy followed before he was able to perform, only now with a voice that grumbled like the trucks that used to pass his roadside childhood home.
When asked another question about whether the state should retain or repeal its current requirement that most English learner students have a maximum of one year of intensive English instruction before transitioning into mainstream English-only classes, most respondents favored retaining the current English immersion requirement, which was implemented by Proposition 227 in 1998.
