14. Can / Can’t

In this lesson, we will talk about the ‘Can/Can’t’ structure. Let’s explore “can” and “can’t” in English grammar in a simple way.

“Can” is a modal verb. We use it to talk about abilities or possibilities. Think of it as a way to say “I am able to” or “It is possible to.” “Can’t” is a short way to say “cannot,” and it means you are not able to do something or something is not possible.

Example Sentences:

• I can’t fly. (I am not able to fly.)
• He can come to the party. (It is possible for him to come.)

How to Use “Can” and “Can’t”:

1. Ability:
   • Use “can” to show what someone knows how to do.
     • Example: She can ride a bike.
   • Use “can’t” to show what someone does not know how to do.
     • Example: He can’t drive a car.
2. Possibility
   • Use “can” to show what is possible.
     • Example: We can meet tomorrow.
   • Use “can’t” to show what is not possible.
     • Example: I can’t meet you today.

Forming Questions

To ask questions, switch the order:

• Can you swim?
• Can they come to the meeting?

Short Answers

• Yes, I can.
• No, I can’t.

Use	Can	Can’t
Ability	I can swim.	I can’t fly.
	She can play the piano.	He can’t drive a car.
	They can speak Spanish.	We can’t speak Japanese.
Possibility	We can go to the park today.	I can’t meet you today.
	You can call me later.	They can’t come to the party.
	It can rain tomorrow.	It can’t be sunny all week.

“can” and “can’t” are very useful for talking about what you or others are able to do or what is possible.

Summary

“Can” is like saying “I am able to” or “It’s possible,” and we use it to talk about things we know how to do or things that can happen. “Can’t” is short for “cannot,” and it means “I am not able to” or “It’s not possible.” So, “I can’t fly” means flying isn’t something you can do.

Grammar Exercises

Practice online and check your results with answers.

Practice Exercise

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