"It's a tough period for all of us who have made a career in government."

We went through a tough period until like a year later.

"We've been through a tough period and we need to put something together," he said.

January 1958 to June 1961 was the toughest period of his life.

The damage comes during an already tough period for the airline industry.

In the beginning of the 1960's we also went through a tough period.

Sometimes in life, you have to go through tough periods.

"Any time guys have been through a tough period, we've always responded."

"It was certainly a tough period in my life," he said.

The club went through some tough periods out of first grade.