Confirm usually takes a direct object. By, to, and in can appear after confirm in specific sentence structures, but they are not interchangeable fixed patterns.
Use confirm something or confirm that-clause most often. Confirm to someone appears in formal business English when giving confirmation to a person. By usually introduces a method, and in appears in expressions such as confirm someone in a belief.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Confirm commonly takes a direct object or a that-clause.
Formal business English sometimes uses confirm to before the person receiving the information.
By usually introduces the means or method, not a fixed verb-preposition combination.
In appears in expressions about reinforcing opinions or beliefs.
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.
Confirm often works directly with an object.
✕ They confirmed about the change. ✓ They confirmed the change.Use confirm something unless the sentence specifically mentions the recipient.
✕ She confirmed to the report. ✓ She confirmed the report.By usually introduces a method or deadline.
✕ The manager confirmed by the decision. ✓ The manager confirmed the decision.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. Confirm usually takes a direct object, such as confirm the booking.
Yes. It appears mainly in business, legal, or news language.
It means to strengthen someone in a belief, feeling, or opinion.
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