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Prepositions after verbs

conclude with, by, in, on or from?

Conclude with and conclude by are the most common patterns. Other prepositions are used in more specific meanings or formal contexts.

Quick answer

Which preposition is used with conclude?

Use conclude with for the final part of something and conclude by for the method or action used to end it. Conclude on and conclude from appear in formal reasoning contexts. Conclude in is uncommon after the active verb conclude.

The meeting concluded with a short speech.
She concluded the presentation by thanking the audience.
We can conclude from the evidence that sales increased.

Choose the pattern by meaning

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

1
conclude with + ending

Showing the final part of something

Use with for what ends an event, text, or discussion.

The concert concluded with a fireworks display.
The article concludes with practical advice.
2
conclude by + action

Showing how something ends

Use by before an action or method used to finish something.

He concluded the lecture by answering questions.
She concluded by summarising the main points.
3
conclude from + evidence

Making a deduction

Use from when drawing a conclusion based on evidence or information.

Scientists concluded from the data that the treatment was effective.
4
conclude on + topic

Reaching a decision about a subject

On appears in formal or business contexts when reaching a conclusion about a matter.

The committee concluded on a new policy.

See the difference in context

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

Construction
Example
Meaning
conclude with
The ceremony concluded with a song.
Shows the final event or element.
conclude by
She concluded by thanking everyone.
Shows the action used to finish.
conclude in
The negotiations concluded in confusion.
In can introduce a resulting state, but it is less common and not a fixed pattern.
conclude on
The board concluded on a revised budget.
Formal pattern meaning reach a decision about something.
conclude from
We concluded from the report that changes were needed.
Shows the basis for a deduction.

Common mistakes

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

Using with before an action

Use by before a verb ending in -ing.

✕ She concluded with thanking the staff. ✓ She concluded by thanking the staff.

Using on for ordinary endings

Use with for the final part of an event or text.

✕ The show concluded on a dance performance. ✓ The show concluded with a dance performance.

Confusing from and about

From introduces evidence used for a conclusion.

✕ They concluded about the data that profits fell. ✓ They concluded from the data that profits fell.

Quick practice

Choose the expression that matches the intended meaning.

1. The meeting concluded ___ a vote.
2. She concluded the report ___ recommending further research.
3. We concluded ___ the evidence that the claim was false.

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Frequently asked questions

What is the difference between conclude with and conclude by?

Conclude with introduces the final thing itself, while conclude by introduces the action used to end something.

Is conclude on common?

It is mainly used in formal or business English to mean reaching a decision about a topic.

Can conclude in be correct?

Yes, especially when describing a resulting state, such as a discussion concluding in silence, but it is less common than conclude with or conclude by.

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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