be instrumental in something
be instrumental in doing something

These factors were instrumental in yesterday's move higher, he said.

From 1970 to 1998, he was instrumental in the center of economic policy and finance.

He was instrumental in the Dodgers' success his first year with them.

He was instrumental in early 20th century development of basketball rules.

Who were the key players instrumental in the development of this system?

He did not publish either book, but was instrumental in their success.

"Because each individual was instrumental in my career," he said.

"The time will come when I can be more instrumental in politics and national affairs, but not now," she said.

Both were also instrumental in the creation of the Internet.

He had been instrumental in his party's winning control of the Senate.