set about

start doing something with energy and purpose

B2

What does "set about" mean?

To set about something means to begin a task or activity with energy, purpose, and determination. It suggests that the person doesn't just start slowly or tentatively — they throw themselves into the work straight away. You'll often come across it in written English, for example in journalism or narrative writing, when a person or group tackles something practical or demanding: repairing a building, solving a problem, or reorganising a system. What makes it distinctive is the sense of vigour and immediacy — the focus is on the energetic launch into the activity, not on any particular plan or method. It's slightly more purposeful-sounding than simply saying 'start', which is why it works well when you want to convey real commitment.

Examples

How to use it

set about + gerund

The most common and natural pattern — follow 'set about' directly with a verb in the -ing form to describe the activity being undertaken.

The team set about redesigning the website from scratch.

set about + noun phrase

A noun phrase referring to a task or job can follow 'set about' instead of a gerund, though this is slightly less frequent.

She set about the repairs as soon as the tools arrived.

set about + it / the task (pronoun or noun reference)

When a task has already been mentioned, 'it' or a short noun phrase can replace the full description, though using 'it' alone can sound vague without clear context.

We knew the project was going to be difficult, but we set about it with confidence.

know how to set about + gerund / noun phrase

This construction is common when questioning or explaining the right approach to beginning something.

Not everyone knows how to set about negotiating a salary increase effectively.

Common Collocations

set about the taskset about solving the problemset about tidyingset about repairingset about making changesset about the job

Common Mistakes

Using an infinitive instead of a gerund

After 'set about', you must use a gerund (-ing form), not an infinitive with 'to'. The infinitive construction is unnatural and sounds wrong to native speakers.

✗ She set about to fix the problem immediately.
✓ She set about fixing the problem immediately.
Confusing 'set about' with 'set out to'

'Set out to' is followed by an infinitive and emphasises a planned goal or intention, while 'set about' is followed by a gerund and emphasises the energetic start of the activity itself. They are not interchangeable.

✗ He set about to prove that the theory was wrong.
✓ He set about proving that the theory was wrong. / He set out to prove that the theory was wrong.
Trying to separate the verb

'Set about' is inseparable — the object or gerund must always come after 'about', never between 'set' and 'about'.

✗ They set the repairs about straight away.
✓ They set about the repairs straight away.

Usage

This phrasal verb is neutral but slightly more formal than 'start' or 'get started on', making it a good choice in writing or when you want to sound purposeful. It is equally common in British and American English.

Frequently Asked Questions

Can 'set about' be used in the passive, like 'the task was set about'?

No, 'set about' cannot be used in the passive. It always needs a subject who is actively doing something, so you can only use it in active sentences.

Is 'set about' more British or American English?

It's used in both British and American English and isn't strongly associated with either variety. You'll find it in writing and speech on both sides of the Atlantic, though in casual conversation most speakers would simply say 'start' or 'get started on'.

What kinds of activities naturally follow 'set about'?

It works best with practical, concrete tasks — things like cleaning, repairing, organising, building, or solving a problem. It can also describe larger-scale efforts like reforming a system or transforming an organisation. It's less natural with purely abstract mental activities, where 'begin' or 'start' might sound more neutral.

Does 'set about' always imply something big or important?

Not necessarily — it can describe any task, large or small, as long as the person is tackling it with energy and purpose. You could set about tidying a room or set about rebuilding an entire company; the size of the task doesn't matter as much as the determination involved.

What's the difference between 'set about' and 'go about' doing something?

'Go about' tends to focus on the method or approach — how you do something (e.g. 'how do you go about applying for a visa?'). 'Set about' puts the emphasis on the energy and determination of starting, rather than the technique involved.

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