Using auxiliaries for 'yes' or 'no' responses

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Using auxiliaries for 'YES' or 'NO' responses

In English the answers yes and no are frequently followed by the construction subject (pronoun) + auxiliary verb
Do you have your laptop with you? - Yes, I do / No, I don't.

These constructions make the answers sound more friendly and emphasize the affirmation or negation.
Didn't you want to talk to the manager? - Yes, I did.

When Yes (or No) is understood, the reply takes on a categorical nature.
Can I borrow your car? - You can't.
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