I worked hard for many years and became very close to him.

She has worked at the for more than 50 years.

You and I have worked together for six long years.

They had been working together for more than four years now.

A man who has worked here for 30 years couldn't get into the building the other day.

She has been working with families and children for over 30 years.

She has worked for more than 25 years in the field of human rights.

I've worked for more than 20 years on environmental issues.

Those three have not had to work for eight years.

We do not work for very many years of our lives.