'Yes' or 'No' in the middle of a sentence

Hi

Could you please tell me how I can write ‘Yes’ or ‘No’ in the middle of a sentence? Am I supposed to highlight it? Am I supposed to capatalize the first letters of both of the words? Should I underline it or what?

1- I do not want a no for an answer.
2- She would never say yes to such a foolish idea.

1- I do not want a ‘no’ for an answer.
2- She would never say ‘yes’ to such a foolish idea.

1- I do not want a ‘No’ for an answer.
2- She would never say ‘Yes’ to such a foolish idea.

1- I do not want a no for an answer.
2- She would never say yes to such a foolish idea.

1- I do not want a no for an answer.
2- She would never say yes to such a foolish idea.

Tom

I usually use inverted commas without capitalizing the first letter inside.

Unless for emphasis, ‘yes’ or ‘no’ as part of a set phrase are not normally put in quotation marks or otherwise highlighted.

The usual expression with ‘no’, however, is ‘I won’t take no for an answer’.

Hi Tom

I agree with Conchita. ‘I won’t take no for an answer’ is the usual expression.

For this particular “yes” sentence, I think your first version is fine:
She would never say yes to such a foolish idea.

Amy