It is in our common interest to do something together.

"Now we both have a common interest in our work."

You may well find no common interest and move on, so what?

They shared a common interest in music and became friends.

He couldn't imagine any area where the two companies had a common interest.

Is it in our common interest to drive them out of business?

But I put it to you that we do share a common interest about writing systems.

We also want to set up joint working groups in areas of common interest such as trade and energy.

Sometimes the rules will come from the participants, working together in their common interest.

For once there was no case in which they had a common interest.