Enthuse about is the standard way to express excitement about a topic. Enthuse by is not a normal English combination.
Use enthuse about to talk about something you are excited about: She enthused about the project. Do not use enthuse by in standard English. In passive structures, you can say be enthused by, but enthused about is usually more natural for opinions and interests.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
About is the standard preposition after enthuse when discussing interests or enthusiasm.
In passive structures, by can identify the thing that caused enthusiasm.
Over is also used, especially in conversational English, for strong excitement about something.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
Use enthuse about for topics and interests.
✕ She enthused by the plan. ✓ She enthused about the plan.By works naturally after enthused in passive structures.
✕ They enthused by the speech. ✓ They were enthused by the speech.Enthuse often needs a topic introduced by about or over.
✓ He enthused about the new software.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Not in normal active usage. Use enthuse about instead.
Yes. This passive structure is grammatical and means someone became enthusiastic because of something.
Both are correct. About is more neutral and common, while over is slightly more informal and emotional.
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