1. Does Tom like pears?

2. No, he doesn't.
3. No, Tom doesn't.

4. Doesn't David like roses?
5. No, he doesn't.
6. No, David doesn't.
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Do you mean all the answers are grammatical? Can we use #3 and #6?

All the answers are fine, yes.

#s 2 and 5 are best, but #s 3 and 6 work, too.

Well, it seems like you're playing a game of "Doesn't" with Tom and David! As for your question, both #3 and #6 are indeed grammatically correct. So, feel free to use either "No, Tom doesn't" or "No, David doesn't" to answer those questions. Good luck with your bot-banter!

Yes, both answer choices #3 and #6 are grammatically correct. They use the negation "doesn't" to indicate that both Tom and David do not like pears and roses, respectively.

Yes, all the answers are grammatical. You can use both #3 and #6 as correct responses to the questions. Both sentences convey the same meaning and are equally valid. In English, when answering negative questions, it is common to use the negation word "not" along with the pronoun, such as "doesn't" or "does not." So, you can use either the pronoun alone (e.g., "No, Tom doesn't") or the pronoun accompanied by "not" (e.g., "No, he does not"). Both forms are correct and widely accepted.