You use can to indicate that someone has the ability or opportunity to do something. Don't worry yourself about me, I can take care of myself. I can't give you details because I don't actually have any details.

Understanding the Context

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Key Insights

The use of can to ask or grant permission has been common since the 19th century and is well established, although some feel may is more appropriate in formal contexts. May is relatively rare in negative constructions (mayn't is not common); cannot and can't are usual in such contexts. Can is usually used in standard spoken English when asking for permission. It is acceptable in most forms of written English, although in very formal writing, such as official instructions, may is often used instead: Persons under 14 unaccompanied by an adult may not enter. CAN definition: to be able to; have the ability, power, or skill to.

Final Thoughts

See examples of can used in a sentence. Do you use “can” and “could” correctly in English? Join me and learn how to use these two important modal verbs, in terms of grammar, vocabulary, and pronunciation.