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Can not or cannot?

can not is a verb meaning “Alternative form of cannot”; cannot is a verb meaning “Can not; be unable to (whether due to physical inability, logical…”. can not is written as two words and cannot as one word; they are used differently.

can notorcannot

What is the difference between can not and cannot?

can notcannot
Part of speechverbverb, noun
Meaning

Used other than figuratively or idiomatically: see can, not

Can not; be unable to (whether due to physical inability, logical impossibility, etc.)

Be forbidden or not permitted to

Something that cannot be done

Examplenone recordedI cannot open the window. It is stuck
Pronunciationnot recorded/ˈkænɒt/ /ˌkænˈɒt/ /ˈkænɑt/
In writingnot counted (the list counts single words)129 times per million words

Sources: can not and cannot in the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Every current meaning of can not and cannot

can not

  1. 1

    verb Alternative form of cannot

  2. 2

    verb Used other than figuratively or idiomatically: see can, not

cannot

  1. 1

    verb Can not; be unable to (whether due to physical inability, logical impossibility, etc.)

    I cannot open the window. It is stuck

  2. 2

    noun Something that cannot be done

    the cans and cannots

  3. 3

    verb Be forbidden or not permitted to

    The Pupil after his Pupillarity, had granted a Diſcharge to one of the Co-tutors, which did extinguiſh the whole Debt of that Co-tutor, and conſequently of all the reſt, they…

  4. 4

    noun A person who cannot do (something)

Source: the English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0); obsolete, archaic, dialect and rare senses left out.

Which is more common, can not or cannot?

can not is a phrase, which the list of single words does not count; cannot 129 times per million words.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How many people search can not vs cannot?

“can not vs cannot” is searched about 1,000 times a month on Google and 180 on Bing in the United States. Google counts close variants of a query together (“cannot vs can not”, “can not or cannot”).

Sources: Google Ads keyword data through DataForSEO and Microsoft Advertising keyword data through DataForSEO, the average month from September 2025 to August 2026.

The words