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Prepositions after verbs

Using baffle naturally

Baffle is usually followed by a direct object, while baffled by is the common adjective pattern. Baffle as is not a standard combination.

Quick answer

Should I use baffle by or baffle as?

Use baffle as a transitive verb: The result baffled me. The adjective baffled is commonly followed by by: We were baffled by the delay. Baffle as is not a standard verb-preposition pattern.

The sudden change baffled the staff.
We were baffled by the instructions.
Scientists remain baffled by the phenomenon.

Choose the pattern by meaning

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

1
baffle + person

Causing confusion

Baffle normally takes a direct object without a preposition.

The message baffled everyone.
Her reaction baffled me.
2
baffled by + thing

Describing confusion about something

Baffled is commonly used as an adjective followed by by.

They were baffled by the sudden silence.
I am baffled by his decision.
3
baffle with + complexity

Explaining the means of confusion

With can introduce what causes the confusion in some contexts.

The puzzle baffled us with its complexity.
She baffled the audience with technical jargon.

See the difference in context

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

Construction
Example
Meaning
baffle + object
The report baffled the committee.
cause someone to feel confused
baffled by
We were baffled by the results.
describe confusion about something
baffle by
The design baffled visitors by hiding the entrance.
by can introduce manner or means, but not as a fixed pairing
baffle as
The statement baffled readers as a piece of satire.
as introduces a role or interpretation, not a standard combination

Common mistakes

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

Adding by after the verb unnecessarily

Baffle usually takes a direct object.

✕ The instructions baffled by the students. ✓ The instructions baffled the students.

Using baffle as as a fixed phrase

Baffle as is not a standard verb-preposition combination.

✓ The comment baffled the audience.

Confusing verb and adjective forms

Use baffled by after forms of be.

✕ We baffled by the noise. ✓ We were baffled by the noise.

Quick practice

Choose the expression that matches the intended meaning.

1. The complicated map ___ the tourists.
2. She was baffled ___ the sudden change.
3. The speaker baffled the audience ___ technical language.

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Frequently asked questions

Is baffled by more common than baffle by?

Yes. Baffled by is the standard and natural pattern.

Can baffle be used without an object?

Usually no. It normally needs someone or something that is confused.

What is the difference between baffle and confuse?

Baffle suggests deeper or more puzzling confusion than confuse.

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