can, can’t – grammar chart
can, can’t – form
We use can + infinitive without to.
- I can swim. (NOT
I can to swim.)
- We can’t come. (NOT
We can’t to come.)
No -s after he/she/it
We don’t add -s after he/she/it. We use can for all persons.
- He can swim. (NOT
He cans swim).
Can is an auxiliary verb and has a negative and interrogative form. We don’t use do/don’t to make questions and negatives.
- Can you swim? (NOT
Do you can swim?)
- He can’t swim. (NOT
He don’t can swim.)
can, can’t – use
We use can/can’t to talk about ability in the present (=things that we know how to do).
- Laura can sing very well.
- I can’t speak German.
We use can/can’t to ask for permission or to say if something is possible or not.
- Can I sit here?
- You can’t vote if you aren’t 18 years old.
- I’m sorry but I can’t come to the party.
Ask for something
We use can/can’t to ask for something and to order in bars, restaurants, shops, etc.
- Can you lend me some money?
- Can I have some water, please?
- Can I have a burger and a soda?