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Prepositions after verbs

Contribute to, in, towards, by or at?

Contribute commonly appears with to and towards. Other prepositions depend on context and sentence structure.

Quick answer

Main patterns with contribute

Use contribute to for causing or helping something. Use contribute towards for giving money or support. Contribute in can describe a field or way. By often introduces the method. At is uncommon after contribute.

Stress can contribute to poor sleep.
Employees contributed towards the charity fund.
She contributed in several important ways.

Choose the pattern by meaning

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

1
contribute to + result/project

Helping to cause or improve something

To introduces the result, goal, or project affected.

Exercise contributes to better health.
2
contribute towards + cost/fund

Giving money or support

Towards is common with payments and shared expenses.

They contributed towards the repair costs.
3
contribute in + field/way

Describing the area or manner of contribution

In introduces a field, category, or way of helping.

Volunteers contributed in practical ways.
4
contribute by + action

Explaining the method

By introduces the action that helps.

You can help by contributing your expertise.

See the difference in context

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

Construction
Example
Meaning
contribute to
Pollution contributes to climate change.
cause or help produce a result
contribute towards
Friends contributed towards the gift.
give money or support
contribute in
She contributed in many areas.
specify field or manner
contribute by
They contributed by sharing resources.
show method or means
contribute at
He contributed at the conference.
at introduces place or event, not a standard complement

Common mistakes

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

Using at as the main complement

At usually refers to location or event only.

✕ She contributed at the project. ✓ She contributed to the project.

Confusing to and towards

To often refers to results; towards often refers to money or support.

✕ They contributed to the ticket price. ✓ They contributed towards the ticket price.

Quick practice

Choose the expression that matches the intended meaning.

1. Lack of sleep can contribute ___ stress.
2. Several families contributed ___ the school fundraiser.
3. She contributed ___ sharing useful contacts.

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Frequently asked questions

Can contribute be followed directly by an object?

Usually it needs a preposition, especially contribute to or contribute towards.

Is contribute towards only about money?

Mostly, but it can also refer to support or effort.

Can contribute to have a negative meaning?

Yes. Something can contribute to a problem or disease.

calculate, by, calculate, in, calculate, from "call for" or "call on"? "campaign for" or "campaign against"? cancel by, due, at, in or for? capitulate to, in, like, by or after? captivate by, for, with, from or in? "capture by" or "capture in"? "care about" or "care for"? carry with, by, in, to or into? carve into, out, in, on or with? cast in, into, for, by or on? "catch in", "catch by" or "catch on"?

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