modal verb

cannot

cannot, can't

I cannot open this jar.

I cannot open this jar.

You cannot be serious!

You cannot be serious!

((sb./sth.)) cannot ((verb)) to be unable to do (sth.) I cannot open this jar.

((sb./sth.)) cannot be ((adj./noun)) used to express disbelief or impossibility You cannot be serious!

Synonyms: unable to, impossible to; Antonyms: can, able to

A combination of 'can' and 'not'.

Remember it's one word, unlike 'do not' or 'is not'. 'Cannot' is the formal version of 'can't'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.