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Prepositions with nouns

Of, for, on, in or to project?

Project combines with different prepositions depending on meaning. On a project and in a project are common. Of project is usually nonstandard unless project modifies another noun.

Quick answer

Which preposition should you use with project?

Use on a project for work or activity, in a project for participation or inclusion, for a project for purpose, and to a project for direction or contribution. Of project is usually not idiomatic on its own.

She is working on a project for school.
He invested money in the project.
We need funding for the project.
They added new files to the project.

Choose the pattern by meaning

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

1
work on + project

Talking about tasks and development

Use on when describing activity connected to a project.

The engineers are working on the project.
She spent all weekend on her project.
2
in + project

Talking about participation or inclusion

Use in when someone or something is part of a project.

Three designers are involved in the project.
Security features were included in the project.
3
for + project

Talking about purpose or support

Use for when something is intended to help a project.

They raised money for the project.
We bought software for the project.
4
to + project

Talking about addition or contribution

Use to when something moves toward or is added to a project.

She contributed new ideas to the project.
Please upload the files to the project.

See the difference in context

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

Construction
Example
Meaning
on a project
I am working on a project.
Doing tasks related to the project.
in a project
She is involved in the project.
Being included or participating.
for a project
We need equipment for the project.
Intended to support the project.
to a project
They added a budget section to the project.
Movement, addition, or contribution.
of project
The phrase of project is usually not idiomatic in standard English.
Normally replaced by another structure such as project goals or goals of the project.

Common mistakes

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

Using of project as a general combination

English usually uses project as a modifier or uses of the project instead.

✕ the timeline of project ✓ the project timeline

Confusing on and in

Use on for work and in for participation or inclusion.

✕ She is working in the project every day. ✓ She is working on the project every day.

Quick practice

Choose the expression that matches the intended meaning.

1. They are working ___ a new project.
2. We need more funding ___ the project.
3. She added a summary ___ the project.

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Frequently asked questions

Is involved on the project correct?

Involved in the project is more standard.

Can I say investment in a project?

Yes. In is common when talking about financial participation.

Why is of project unusual?

English normally says project budget or budget of the project instead.

of, about, against, to or for racism? of, about, for, in or on friendship? of, about, for, on or to thing? of, about, for, to or with sex? of, about, on, to or for moon? "of access" or "with access"? "of accommodation" or "for accommodation"? "of accuracy" or "for accuracy"? "of action" or "in action"? "of actor", "with actor" or "by actor"? "of address" or "to address"? "of administration" or "in administration"?

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