Can, Could, must, had to,may, should, ought

1. I can speak English, but I can't speak French.
2. Tom can swim, but his little brother can't.
3. Tom couldn't swim two years ago, but now he can.
4. Mary couldn't go to school yesterday, because she was ill.
5. I could walk ten minutes a day when I was a young man, but now I can't.
6. He could answer the teacher's question yesterday, but he can't answer the same question today.
7. She looked everywhere for her watch, but she couldn't find it.
8. Tom had a lot of homework yesterday, and he couldn't finish it.
9. People couldn't travel by air two hundred years ago.
10. He couldn't save any money, because he had a large family.
11. The old man is almost blind, but he could see well when he was young.

1. Jack had to get up very early yesterday.
2. Mr. Smith had to work hard when he was young.
3. There was no bus or taxi, so I had to walk.
4. The teacher was late, so that pupils had to wait.
5. Ali had to leave school when he was fourteen and go to work.
6. I lost my watch a week ago, and I had to buy another one.
7. The tourist had to take off their shoes when they visited a mosque.
8. The bridge was broken, and the traveler had to swim across the river.
9. Jack had to do a lot of homework yesterday.
10. The sick man had to stay in hospital for three months in 1961.

1. May we write the answers in pencil?

    Yes, you may. You may write in pencil or ink.

    No, you may not. You must write in ink.

2. May I smoke here?

    No, you may not. Smock is not allowed.

3. May I come and see you this evening? I'm not felling well.

    Of course you may. You may come at any time.

4. May I stay up another hour. 

    No, you may not. You  must go to bed at once.

1. People may walk in the park, but they mustn't pink flowers.
2. Pupils may ask the teacher questions, but they must speak at the same time.
3. Pupils may play in the play ground, but mustn't play in the classroom.
4. You may go for a walk, but you mustn't come home.
5. You may look at the lions in the zoo, but you mustn't touch them.
6. Pupils may borrow books from the school library, but they mustn't keep them.
7. You may ride your bicycle in the street, but you mustn't ride it on the pavement.
8. The sick girl is better. She may go back to school tomorrow, but she mustn't go out today.
9. A man may borrow money, but he mustn't steal.
10. The teacher is in hospital. The pupils may visit him, but they mustn't stay for more than twenty minutes.

1. May I go home before the last lesson?
2. It's very cold. May I shut the windows?
3. May I ride my bicycle in the playground?
4. My hands are covered with ink. May I go and wash them?
5. May I write my composition on a piece of paper?
6. May I take off my shoes off?
7. It's dark here at the back of the class. May I put the light on?
8. I can't see the blackboard. May I change my place?
9. I have borrowed a book from the library. May I keep it?
10. May I bring my phone to school?

1. It may rain today, or it may be fine. I don't know.
2. This news may be true, and it may be untrue. No one can be certain.
3. He may go to Paris for a holiday, but he hasn't made up his mind yet.
4. My name is not written in this book, but it may be mine.

1. Nobody knows whether that old man is rich or poor.
   That old man may be rich or he may be poor.
2. Perhaps Ahmad will go to America next year.
   Ahmad may go to America next year.
3. Perhaps there will be a holiday next week.
    There may be a holiday nextweek.
4. Jack is not sure if he will pass the examination at the end of this year.
    Jack may pass the examination at the end of this year.
5. Perhaps the Minister of Education will open the new school.
    The Minister of Education may oped the new school.
6. Nobody knows whether the doctor in the hospital  or at home.
   The doctor may be in the hospital or he may be at home.
7. Nobody knows if there will be another war.
    There may be another war next year.
8. Perhaps Hentry will go to London University when he leaves school.
    Hentry may go to London University when he leaves school.
9. I am not certain if my watch is right.
    My watch may be right.
10.I am not sure whether Hentry is fifteen or sixteen years old.
    Hentry may be fifteen years old or he may be sixteen years old.

We should(ought to) clean our teeth after every meal. But many of us forget to clean our teeth, or we have no time to clean them, and we are not punished. People shouldn't tell lies. But most people tell lies sometimes and they are often not punished.

A man mustn't steal. If he steals, he will be put in prison. You must study your lessons. If you don't study, you won't pass the examination. Failure is a kind of punishment.

1. You should be more careful.
2. You oughtn't to smoke so many cigarettes.
3. Mother should look after their children.
4. Big boys shouldn't hit little boys.
5. We should help the poor.
6. It was raining and Mary's mother told her that she shouldn't go without an umberalla.
7. People shouldn't spend all their money; they should save some.
8. The teacher told us that we should write the meanings of new words in our note book.
9. Tom was often late and his father told him that he should wake up earlier
10. She told her children that they should often always say Please and Thank you.

1. The policeman told the driver he ought to drive more carefully.
2. I told the boys that they oughtn't to swim near the bridge, because it was dangerous.
3. Mr. White is nearly seventy years old. He is still working, but he ought to retire.
4. You oughtn't to keep that book. It doesn't belong to you.
5. The woman is looking ill. She ought to see a doctor.
6. The teacher is tired. He oughtn't to work hard.
7. I ought to finish this work today, but I am very tired.
8. The teacher told Tom that he oughtn't to make so many careless mistakes.
9. The doctor told the fat man that he oughtn't to eat so much
10. Henry has worn the same shirt for four days. He ought to put on a clean one.

1. The doctor said, "The child is very ill. He must be taken to the hospital at once.
2. A man should help his parents when they become old.
3. There are no buses or taxis, so we must walk.
4. Everybody ought to learn a foreign language.
5. We can't live without food and water. We should eat and drink.
6. I must get up early tomorrow, so I  shouldn't go to bed late tonight.
7. You shouldn't drive a car at night without lights.
8. Tom's father told him that he shouldn't ask silly questions.
9. There is a law in England that all boys and girls stay at school until they are sixteen years old.
10. The teacher told Tom, "I ought to punish you, but I will forgive you this time."