## Basic Modals

There are 3 concepts in Modals. The concept of probability, the concept of ability and the concept of Duty.

What is probability?
A probability means an action may happen. For probability we use helping verb may or may be.

Ability means your ability to do something. For ability we use the helping verb can or can be.

Duty means some action which we need to do which you should to do, which you have to do. The important helping verbs here are should, should be, have to, have to be, must, must be.

When do we add be and when do we not add be.

It is very simple. We use only may, can, should, must with v1 when there is a verb in the sentence.

When there is no verb, we add be to the above. Example -

I may go to the market tomorrow. (There is a verb here)
I may be in the market tomorrow. (There is no verb here)
He may be in the room. (There is no verb here)

Exercise 1
In the following use “may, can , should, may be, can be, should be

1.   George has worked as a chef in many restaurants. He ………. Cook many dishes.
2.   You ………. (not) talk loudly. The class gets disturbed.
3.   I can see clouds in the sky. It ………. rain.

4.   You ………. (not) drive fast. Time is important but life is more important.
5.   You ………. punctual. You will not miss the beginning of the class.
6.   You ………. a good singer if you practice with dedication.
7.   ……….  you sing well?
8.   Why ……….I listen to you? Every time I followed your advice, I failed.
9.   ………. (not) you come to my house? It is only a furlong away.
10. ………. you explain once again? I did not understand.
11. Why ………. (not) you follow instructions? After all, the instructions are simple.
12. Who ………. responsible for completing the tasks?
13. I ………. there at 5PM. It’s very urgent.
14. If you ………. do this work on time it will be a great help.
15. Who ………. paint well in your class?
16. To whom ………. I give this letter?
17. Where ………. I join to do my M.Sc Computers? Please help me, I am confused.
18. After we give the present, what ………. we do next?
19. ………. (you) here at 4PM tomorrow.
20. Who ………. get the 1st prize? Everybody did well.