The answer is a bit nuanced:
* "Too" itself doesn't directly make a sentence negative. "Too" indicates an excessive amount of something.
* You can use "too" in a negative sentence, but it often changes the meaning.
Here's a breakdown:
Examples:
* "It's too spacious." (This is a positive sentence. "Too spacious" implies that the space is more than enough, which is generally a good thing.)
* "It's not too spacious." (This sentence is negative, but "too" is still used to imply that the space is not excessively large. It could be comfortably sized.)
* "It's not spacious enough." (This is a more direct negative statement. It means the space is lacking in size.)
In short:
You can use "too" in negative sentences, but it's often better to use other wording to make the negation clear and avoid ambiguity. Consider if "too" is actually necessary or if another phrasing would be more appropriate.