1. "That, not it, is..."
* This emphasizes the contrast between "that" and "it."
* The commas set off "not it" as an interjection or a parenthetical phrase.
2. "That, not it, is..."
* This emphasizes the contrast between "that" and "it."
* The commas set off "not it" as an interjection or a parenthetical phrase.
3. "That not it, is..."
* This emphasizes the contrast between "that" and "it."
* The comma after "it" creates a pause, highlighting the negation.
4. "That, not it is,..."
* This emphasizes the contrast between "that" and "it is."
* The commas set off "not it is" as a parenthetical phrase.
5. "That not it is..."
* This emphasizes the contrast between "that" and "it."
* No punctuation is used, creating a more concise and direct statement.
The best punctuation depends on the specific meaning you want to convey. For example:
* "That, not it, is the real problem." This clearly emphasizes the contrast between "that" and "it."
* "That not it, is the answer." This emphasizes the negation of "it" being the answer.
It's always a good idea to read your sentence aloud and consider the pauses you naturally make to help you determine the appropriate punctuation.