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Prepositions after verbs

behave like or behave in?

Behave like is the standard pattern for comparing someone's behaviour to a person or thing. Behave in usually introduces a manner or situation, not a direct object of comparison.

Quick answer

Which form is correct?

Use behave like + person, animal, or thing to compare behaviour. Use behave in + manner/place/situation when describing how someone behaves.

He behaved like a child during the meeting.
Please behave in a respectful way.
They behave like professionals.

Choose the pattern by meaning

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

1
behave like + person/thing

Comparing behaviour

Use behave like to say that someone acts similarly to another person, group, or thing.

She behaves like a leader.
The puppy behaved like a spoiled child.
2
behave in + manner

Describing the way someone behaves

Use behave in before words such as way, manner, or style.

He behaved in a calm manner.
The students behaved in a very polite way.
3
behave in + place/situation

Behaviour within a context

Use behave in when referring to a setting or situation.

Children should behave in class.
She knows how to behave in public.

See the difference in context

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

Construction
Example
Meaning
behave like
He behaves like his older brother.
standard comparison of behaviour
behave in
She behaved in a professional manner.
standard pattern for manner or context
behave in public
Children must behave in public.
in introduces a place or situation, not a comparison
behave as
He behaved as a guest should.
formal way to describe role or expected conduct

Common mistakes

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

Using behave in for comparison

Do not use behave in before a person or thing when making a comparison.

✕ He behaves in a child. ✓ He behaves like a child.

Omitting the noun after in

Behave in usually needs a context or expression such as way, manner, class, or public.

✕ She behaved in. ✓ She behaved in a polite way.

Quick practice

Choose the expression that matches the intended meaning.

1. He always behaves ___ a professional.
2. The children behaved ___ a quiet manner.
3. You should behave ___ public.

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Frequently asked questions

Is behave like informal?

No. Behave like is standard English for comparing behaviour.

Can I say behave in class?

Yes. Here in refers to the setting where the behaviour happens.

Can behave in be followed directly by a person?

No. For comparison with a person, use behave like.

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