Local volunteers and city officials were co-operating to distribute supplies after the storm.

Successful international research depends on co-operation between scientists and funding agencies.

The co-operative team finalized the project ahead of schedule by sharing resources and expertise.

After the harvest, the farmers formed a co-operative to market their vegetables together.

To complete the cross-border project on time, the UK and European teams must co-operate closely.

She co-operates with the research team to finalize the experiment protocol.

The two departments co-operated closely to launch the new product on schedule.

The two teams worked co-operatively to complete the project before the deadline.

Co-operatives across the region pooled resources to build a shared processing facility for small farmers.

The co-operators worked late into the night to finalize the grant proposal.