Use ‘Able to / Unable to’ | English Grammar | OM Tutorials

Dear Students,

Our today’s topic is ‘use able to and unable to’. Able to / Unable to is an important grammar lesson which is frequently asked in the Maharashtra board exams.

so Lets start with the lesson.

First we have to remember the rules of helping verb for using able to and unable to.

Can : is, am, are able to 

Can not : is not, am not , are not able to / is , am, are unable to

Could : was, were able to

Could not: was not, were not able to  / was, were unable to

Examples:

1. I can do it tomorrow.
Explanation: Here, can is used so we will remove can and according to the above rule we have to use is, am, are and then able to. Since Subject of the sentence is I and we use ‘am’ for the subject I, the answer of the sentence will be :  
Ans: I am able to do it tomorrow.

Use the explanation above to change the following sentences.

2.She can work hard.
Ans: She is able to work hard. 

3.They can not play well in the game.
Ans: They are not able to play well in the game. 

4. I could manage well enough
Ans: I was able to manage well enough.

5. I knew I could not afford caviar.
Ans: I knew I was unable to afford caviar.

6. She could not read, and it terrified her
Ans: She was unable to read and it terrified her.

7. It is possible for her to join us for tomorrow’s party. 
Ans: She can join us for tomorrow’s party.

8. It is possible for us to play cricket tomorrow.
Ans: We can play cricket tomorrow

9. Hawking could not attend a conference in Arizona.
Ans: Hawking was unable to attend a conference in Arizona.

10. An old and experienced Cuban fisherman could not catch any fish for eighty-four days.
Ans: An old and experienced Cuban fisherman was unable to catch any fish for eighty-four days.

11. Police and judges can not protect our children.
Ans: Police and judges are unable to protect our children. 

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