Expertise is most commonly followed by in to name a field or area. Other prepositions may appear in specific contexts, but some combinations are uncommon or awkward.
The standard pattern is expertise in + field. Expertise on is also used for a topic, especially in discussions or reports. Expertise with can describe skill using tools or systems. Expertise of usually refers to the expert's knowledge, not the subject area. Expertise to and expertise about are uncommon after the noun.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use in to identify the subject or professional field.
Use on when discussing a subject in conversation, writing, or analysis.
Use with for practical skill with equipment, software, or methods.
Use of when expertise belongs to a person or organisation.
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.
Expertise is not normally followed by to to name a subject area.
✕ expertise to accounting ✓ expertise in accountingAbout sounds less natural when naming a profession or academic field.
✕ expertise about chemistry ✓ expertise in chemistryOf usually identifies who has the expertise, not the field itself.
✕ expertise of engineering ✓ expertise in engineeringOn works better for specific topics than entire disciplines.
✕ expertise on medicine ✓ expertise in medicineChoose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes. Expertise in is the standard way to name a field or subject area.
Yes. Expertise on is natural when talking about a topic in discussion, writing, or analysis.
It is possible but less idiomatic than expertise in or expertise on in most contexts.
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