The project took 4 years and cost over $23 million.
In all, the project took about two and a half years.
No one could say whether the war would take another six months, a year, two years or more.
On average, the process takes two years and seven months.
From beginning to end, the process of making the ask can take a month, or a year.
To right them will take a year, perhaps two years.
It's taken years of research and development to win the order.
It took him seven long and difficult years to find out where he was going wrong.
In either case, the process will take months, if not years.
It may take months, or years, for the new administration to sort out its China policy.