CAN / COULD

CAN / COULD

CAN: 


  • We use the modal can to make general statements about what is possible:

It can be very cold in winter. (= It is sometimes very cold in winter)
You can easily lose your way in the dark. (= People often lose their way in the dark)
  • We use the negative can’t or cannot to show that something is impossible:

That can’t be true.
You cannot be serious
  • We use can to talk about someone’s skill or general abilities:

She can speak several languages.
He can swim like a fish.
They can’t dance very well.
  • We use can to talk about the ability to do something at a given time in the present or future:

You can make a lot of money if you are lucky.
Help. I can’t breathe.
They can run but they can’t hide.
  • We use can to ask for permission to do something:

Can I ask a question, please?
Can we go home now?We use can to give permission:
You can go home now if you like.
You can borrow my pen if you like
*We use can to say that someone has permission to do something:
We can go out whenever we want.
Students can travel free
  • We use can I … to make offers:

Can I help you?
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COULD:
  • We use could as the past tense of can:

It could be very cold in winter. (=Sometimes it was very cold in winter.)
You could lose your way in the dark. (=People often lost their way in the dark)
  • We use could to show that something is possible in the future, but not certain:

       If we don’t hurry we could be late. (=Perhaps/Maybe we will be late)
  • We use could have to show that something is/was possible now or at some time in the past:

It’s ten o’clock. They could have arrived now.
They could have arrived hours ago.
  • We use couldn’t/could not to talk about the past:

We knew it could not be true.
He was obviously joking. He could not be serious.
  • We use could to talk about past time:

She could speak several languages.
They couldn’t dance very well.
  • Could is more formal and polite than can:

Could I ask a question please?
Could we go home now?
  • We use could you and as a polite way of telling or asking someone to do something:

Could you take a message please?
Could I have my bill please?
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EXERCISES

1. ........................... I ask you something?

2. She said I ............................ come as often as I liked.

3. Jack ................................. not go to work yesterday because he was ill.

4. He ............................. borrow my car, if she asked.

5. I .................................... her, if I had wanted to.

6. .......................... you lend me some pounds until tomorrow?

7. When I was a child, I ............................ play whenever I wanted to.

8. 'Where is John?' He .......................... be in the garden.

9. It was a place where anything .......................... happen.

10. I ............................ not understand anything she said.

11. You ............................ get a better job if you speak English.

12. War ............................ break out any day.


GOOD LUCK!<3

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