International co-operation is essential for addressing global challenges.

The co-operative effort of the team led to their success.

The co-operative is a community-owned grocery store.

They decided to co-operate on the project.

They are co-operating on the project.

They co-operated to complete the project.

The company co-operates with other businesses to expand its market.

They worked co-operatively to complete the project.

There are many co-operatives in this city.

The co-operators are working together to achieve their goals.