I was reading a book, where sometimes there is a comma before "either" at the end of the sentence, and sometimes there is no comma. Is there a punctuation rule as to why this is so? Could you please explain the reason?
1. Pat didn't call during lunch. But she didn't call after dinner either.
2. Jenny hadn't expected her father to like Jack, but he hadn't expected him to reject her, either.
Why isn't there a comma in the first sentence, if the intended meaning of "either" in both is "as well"?
This is the author's choice. Styles may vary. Personally I would not bother with a comma.
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This is the author's choice. Styles may vary. Personally I would not bother with a comma.