Both cannot and can not are perfectly fine, but cannot is far more common and is therefore recommended, especially in any kind of formal writing. Can't has the same meaning, but as …

Can’t is a contraction of cannot, and it’s best suited for informal writing. In formal writing and where contractions are frowned upon, use cannot. It is possible to write can not, but you …

"Cannot" and "can not" are both acceptable expansions of "can't." However, in most circumstances, you should use "cannot" (i.e., the one-word version). "Cannot" (one word) is …

In this article, I will compare cannot vs. can not. I will use each in a sentence to illustrate the proper context, and I will also reveal a helpful trick to use when you can’t decide whether to …

Feb 1, 2024 · “Cannot” and “can not” might seem interchangeable, but a subtle difference sets them apart. While “cannot” offers simplicity and conventionality, suitable for most situations, …

When you’re writing cannot, always spell it as a single word to be correct. Although can not is an acceptable form that you can also use, it’s usually only in more relaxed settings. If you’re …

Nov 16, 2025 · Both “can not” and “cannot” are grammatically correct, but they are used in different contexts. “Cannot” is the more commonly used form and is employed in general …

Sep 6, 2025 · Cannot, Can not or Can’t — what is the difference? Learn grammar rules, examples and tips for using these forms in formal and informal English.

Sep 6, 2025 · ‘Cannot’ is the standard contraction of ‘can’ and ‘not,’ indicating a definite lack of ability or possibility. For example, you might say, “I cannot swim,” meaning you are unable to …

May 9, 2025 · Understanding the distinction between "cannot" and "can not" requires examining how modal verbs function with negation in English grammar. "Can" belongs to the modal verb …