Outline is usually used without a preposition before the topic. Different prepositions may appear afterward for method, place, audience, or subject.
Outline is commonly transitive: outline a plan, outline the problem. Prepositions such as in, by, for, at, and on usually introduce extra information rather than forming fixed combinations with outline.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Outline is most often followed directly by the thing being summarised or described.
In usually introduces manner or form, not the object of outline.
For introduces the audience, purpose, or beneficiary.
On introduces the topic of a lecture, document, or presentation.
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.
Outline usually takes a direct object.
✕ She outlined about the plan. ✓ She outlined the plan.Use a direct object before on when naming a topic.
✕ He outlined on climate policy. ✓ He outlined his views on climate policy.At normally gives context such as a meeting or event.
✓ The policy was outlined at yesterday's conference.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, but it is less common. Most uses specify what is being outlined.
Yes, when on introduces the topic, as in outline views on education.
No. By usually introduces the agent in passive constructions, not a special complement of outline.
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