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CAN and COULD – How can I use these verbs correctly? 5 SIMPLE STEPS

CAN and COULD – How can I use these verbs correctly? 5 SIMPLE STEPS
  • What’s the difference between CAN and COULD?

Let’s look at CAN and COULD in 5 different steps:

 

  1. ability
  2. possibility
  3. permission
  4. request
  5. offer

 

First, it’s important to remember:

can could modal verbs

 


 

1.ABILITY – Do you have the skill or talent?

CAN = present ability

  • I can speak English very well.
    I have this ability. 
  • I can party all night, every night.
    I have this ability. 
  • I can make the world’s best tiramisu.
    I have this ability. 
  • Basketballers can jump very high.
    They have this ability. 
  • Cheetahs can run very fast.
    They have this ability. 

 

COULD = past ability

  • I could speak English very well.
    I had this past ability. 
  • I could party all night, every night.
    I had this past ability. 
  • When I was at uni, I could study for hours. Now I can’t.
    I had this past ability. 
  • My gran could make the world’s best tiramisu.
    She had this past ability. 
  • In the past, everybody could speak Sardinian. Now, many young people only speak Italian.
    This was a past ability. 

2.POSSIBILITYIs something possible to do?

 

CAN = present possibility

England can be very expensive.
This is possible. 

Be careful. The noodles in this restaurant can be very spicy even though I always say ‘No chili please!’.
This is possible. 

 

can could modal verbs

 

If you can’t find what you need here, you can probably find it on Amazon.
This is possible. 

 

COULD = possibility in general. 

You can use ‘could‘ for the past, present or future. The context of the situation/ sentence will tell you if ‘could’ is referring to the past, present or future. 

 

My granddad could either be a very nice person, or he could be a horrible person. It always depended on the day.
These are two past possibilities

When I was child, you could actually still see traditional chimney sweeps!
This was a past possibility

can could modal verbs

 

30 years ago, you couldn’t travel so easily. We didn’t have cheap airlines  like EasyJet or Ryanair.
This was not possible in the past

 

Oh no, where are my keys? Hm…they could be in my jacket pocket.
This is a present possibility

I wonder what my best friend from high school is doing now? She could be married. She could still be living in New York.
These are two present possibilities

 

If we don’t want to cook tonight, we could go out. What do you think?
This is a future possibility

According to the forecast, it could get as low as -5C tomorrow!
This is a future possibility

 

COULD HAVE + PAST PARTICIPLE

We use ‘could have + past participle‘ when we are speaking about a past hypothetical situation. This is something that did NOT happen. 

 

Situation: Your mum is angry at you for drinking alcohol and driving.

Example: You could have crashed! You could have died! You could have damaged my car!
This is all hypothetical. You did not crash – You did not die – You did not damage the car. 

 

You know, I could have been a professional footballer. But, my parents never supported me.
This is hypothetical. You did not become a professional footballer. 

 

On the phone:
A: Hi Jim, where are you? I’ve been waiting here for over half an hour!
B: Oh sorry Anne, my boss is making me work late tonight.
A: What? You could have called me to tell me! How long were you planning on letting me wait?
This is hypothetical. Jim did not call Anne. 

 

3. PERMISSIONAre you allowed to do something?

CAN = informal permission
COULD = formal permission

 

Can I borrow your phone? (informal)

Could I borrow your phone? (formal)

Can I take your picture please? (informal)

Could I take your picture please? (formal)

 

We only use CAN when we give permission. Not COULD.

☑ Yes you can use my phone.

Yes you could use my phone.

☑ Of course you can take my picture.

Of course you could take my picture.

 

4.REQUESTS – Do you want someone to do something for you?

CAN = informal request
COULD = polite request

(Both are polite if you use ‘please’, but CAN is more informal.)

Can you close the window please? (informal)

Could you close the window please? (more polite)

 

5.POLITE OFFER – Can you help someone?

Use either CAN or COULD!

I can/could drive you to the airport if you need me to.

I can/could help you with your essay if you want.

Can/Could I get anyone another drink?

 

Thank you so much for reading this blog on can and could!

Don’t forget to check out my YouTube channelInstagram, Facebook and other blogs.

See you next time! Arnel 🙂

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