Prepositions with nouns

Prepositions used with cooperation

Cooperation commonly appears with on, in, between, with, and among. Some combinations with of or about are possible only in specific sentence structures.

Quick answer

Which prepositions are common with cooperation?

Use cooperation on for shared projects or issues, cooperation in for participation in activities, and cooperation between or with for relationships between people or groups. Cooperation for and cooperation about are uncommon as direct combinations.

The countries increased cooperation on climate policy.
We appreciate your cooperation in resolving the issue.
There is close cooperation between the two teams.
Thank you for your cooperation.

Choose the pattern by meaning

These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.

1
cooperation on + project/topic

Working together on a task or issue

Use on when people or organisations collaborate on a specific subject or activity.

The agencies announced cooperation on border security.
Researchers are seeking cooperation on the study.
2
cooperation in + activity/process

Participation in an action

Use in when cooperation happens as part of a process or activity.

Thank you for your cooperation in completing the survey.
The witness refused cooperation in the investigation.
3
cooperation between + groups

Relationship between parties

Use between to describe cooperation involving two or more clearly identified groups.

There is strong cooperation between the universities.
The agreement encourages cooperation between police forces.
4
cooperation with + person/organisation

Working together with someone

Use with to name the person or organisation involved in cooperation.

The company values cooperation with local suppliers.
The project depends on cooperation with regional authorities.

See the difference in context

The same subject can take different constructions because each sentence answers a different question.

Construction
Example
Meaning
cooperation on
The ministers discussed cooperation on energy policy.
Standard for shared work on a topic or project.
cooperation in
Thank you for your cooperation in this matter.
Standard for participation in a process or activity.
cooperation for
The programme was created for international cooperation.
For usually introduces the purpose of something, not a direct pattern after cooperation.
cooperation about
They held talks about cooperation in trade.
About normally modifies talks or discussions, not cooperation itself.
cooperation of
We appreciate the cooperation of local residents.
Of can identify the people providing cooperation.
cooperation with
The charity works in cooperation with schools.
With names the partner in the cooperative relationship.

Common mistakes

Some combinations appear in real text but do not mean what learners often assume.

Using cooperation for as the main pattern

Cooperation for is uncommon directly after cooperation.

✕ They announced cooperation for cybersecurity. ✓ They announced cooperation on cybersecurity.

Using about directly after cooperation

English normally uses on for the topic of cooperation.

✕ The countries agreed on cooperation about trade. ✓ The countries agreed on cooperation in trade.

Confusing in and with

Use in for participation in an activity and with for the partner.

✕ Thank you for your cooperation with completing the form. ✓ Thank you for your cooperation in completing the form.

Quick practice

Choose the expression that matches the intended meaning.

1. The agencies are working in cooperation ___ local hospitals.
2. They signed an agreement on cooperation ___ technology research.
3. There is growing cooperation ___ the two countries.

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Frequently asked questions

Can I say cooperation on a project?

Yes. Cooperation on is very common for shared work on projects, policies, or issues.

Is cooperation about correct?

Usually another noun takes about, such as discussion about cooperation. Directly after cooperation, on or in is more natural.

What is the difference between cooperation with and cooperation between?

With focuses on one partner, while between emphasises the relationship among named groups or organisations.

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