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Can-Cannot (Use and Rules) for SLC/ High School

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Can - Cannot - Can't

English Grammar Notes for Class 10(SLC)

Can = modal verb.

In English Language Can is used to say that something is possible.

Can is the same for all First Second and Third Person/ Subjects

The verb that follows Can is in infinitive without to:

  • I can speak Nepali. (= it is possible for me to speak Nepali = I have the ability to speak Nepali)
  • He can drive well.


Adding "not" after can to form one word: cannot will result in forming negative sentences

We can also shrink Cannot to form can't. (can't = cannot)

  • I cannot climb the mountain. We can't go to the cinema today.
  • He cannot speak Japanese very well. He can't ride a horse.


To form a question we change the position of the subject and the auxiliary verb.

The main verb is still in the infinitive without to.

  • Where can I buy a laptop?
  • Can I go to the toilet, please?
  • Can you speak Nepali?
  • What can we do on Teachers Day?
  • You can use short answers like below:
  • Can I look at it? Yes, you can.
  • Can you play flute? No, I can't.

Impersonal Can

In some conditions, You can and Can you…? are impersonal and refer to people in general.

  • You can see many birds in this forest. (= people in general can see many birds in that forest)

It doesn't necessarily refer to you but people in general.

  • You can't destroy public property .

  • This Note describes about the rules of using CAN-CANNOT in a sentence. Click on the note to learn more...It will helpful to SLC or class 10 Students.

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