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I want to talk to someone and make sure something is done. How to express this meaning using the word confirm? I'm not sure whether it should be confirm to sb or confirm with sb. Is there another way to say it?

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2 Answers 2

up vote 3 down vote accepted

With is correct:

I'd like to confirm with you that you will finish the report by Thursday.

You can also request confirmation:

Please confirm that you'll finish the report by then.
I need your confirmation that you'll do it on time.

With this sense, you can also confirm something for someone:

Let me look at my calendar to confirm that for you.

That is, to act on their request for confirmation.

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I think there are three distinct meanings for "confirm":

  • "get confirmation from"

  • "give confirmation to"

  • "mutually reach a firm agreement from some more vague state"

I think all of them can use "with" (which can therefore sometimes be ambiguous). The second can also use "to".

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