Keen combines with different prepositions depending on meaning. Keen on is the most common pattern for interests and enthusiasm.
Use keen on for interests and preferences: keen on music. Use keen to for eagerness to do something. Keen for can express desire, especially in British English. Keen about and keen in are less common and more context-dependent.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use keen on for hobbies, activities, and preferences.
Use keen to before an infinitive verb.
Use keen for to express desire, especially in British English.
Keen about is possible when discussing enthusiasm or concern about a topic.
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 keen to before verbs.
✕ She is keen on join the team. ✓ She is keen to join the team.Keen in is not normally idiomatic after the adjective keen.
✕ He is keen in football. ✓ He is keen on football.Keen on expresses interest; keen for expresses desire.
✓ She is keen on chess but keen for a promotion.Choose the expression that matches the intended meaning.
Paste the complete sentence below. Linguix checks the preposition together with grammar, spelling, punctuation, and style.
Yes. Keen on is the usual pattern for interests and hobbies.
Yes, though it is more common in British English.
Because keen does not normally select in as its complement. In may appear separately as part of another phrase.
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