However, if you are trying to express a different meaning, you might need to add punctuation. For example:
* "That is not it!" (Exclamation point to express surprise or emphasis)
* "That is not it, is it?" (Comma and question mark for a questioning tone)
* "That is not it. It's this." (Period for a declarative statement)
Ultimately, the punctuation you use depends on the intended meaning and tone of the sentence.