NEGATIVE WITH BE

NEGATIVE CONTRACTION (from esl.about.com)

aren't --- are not --- Example: They aren't coming next week.
can't --- can not --- Example: I can't understand you.
couldn't --- could not --- Example: He couldn't get his shoes on!
didn't --- did not --- Example: We didn't visit Rome. We went straight to Florence.
doesn't --- does not --- Example: He doesn't play golf.
don't --- do not --- Example: They don't like cheese.
hadn't --- had not --- Example: I hadn't thought of that!
hasn't --- has not --- Example: She hasn't telephoned yet.
isn't --- is not --- Example: She isn't listening to you.
mustn't --- must not --- Example: Children mustn't play with fire.
needn't --- need not --- Example: You needn't worry about that.
shouldn't --- should not --- Example: You shouldn't smoke cigarettes.
wasn't --- was not --- Example: I wasn't joking when I said that.
weren't --- were not --- Example: They weren't invited to the party.
won't --- will not --- Example: I won't be able to attend the conference.
wouldn't --- would not --- Example: She wouldn't be surprised if he showed up at the party. 

1-5 NEGATIVE WITH BE
(a)   Nicko (is not / isn’t) a teacher. He is a student.	Not makes a sentence negative Not can be contracted with is and are: CONTRACTION:  is + not = isn’t CONTRACTION: are + not = aren’t
(b)   Nicko and Dina (are not / aren’t) teachers.
(c)    I am not a teacher	Am and not are contracted

EXERCISE : Complete the sentences with the correct information

1. Korea    isn’t   a city. It   ‘s a country  .
2. Horses ______________ insects. They ______________
3. Asia ______________  a country. It ______________
4. Bees and ants ______________  animals. They ______________
5. Arabic ______________  a country. It ______________
6. I ______________  a professional photographer. I ______________

To be: negative sentences, by sebelenglish
Find this and other to be exercises in English Exercises .org

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