English grammar: Can for ability

What this grammar point covers

‘Can’ is a special verb we use in English to talk about ability. It shows what someone is able to do.

When to use it

Use 'can' to say someone is able to do something, like a skill or activity. You can also use it to ask if someone is able to do something.

Key forms

• 'can' + base verb (I can swim.)
• 'cannot' or 'can't' + base verb (I cannot swim. / I can't swim.)
• Question: 'Can' + subject + base verb? (Can you swim?)

Examples

Tips

• After 'can', always use the base form of the verb (no 'to'). Say 'can go', not 'can to go'.
• 'Can' is the same for all subjects (I can, you can, he can, etc.).
• Use 'can't' or 'cannot' for the negative form.