Educational worksheet on negative prefixes with exercises for forming negative adjectives.

Task Overview:

The worksheet focuses on using negative prefixes (`Un-`, `Ir-`, `Im-`, `In-`, `Il-`, `Dis-`) to form negative adjectives. The tasks involve categorizing words, filling in blanks with the correct negative adjectives, and completing sentences using the provided adjectives with appropriate negative prefixes.

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Part I: Categorize Words Using Negative Prefixes

#### Instructions:
Choose the correct prefix (`Un-`, `Ir-`, `Im-`, `In-`, `Il-`, `Dis-`) to make each adjective negative in meaning. Write the words in the correct columns.

#### Adjectives Provided:
- honest
- sincere
- regular
- legal
- possible
- friendly
- capable
- patient
- logical
- expensive
- formal
- loyal
- correct
- happy
- polite
- sensitive
- practical
- obedient
- responsible
- comfortable
- modest

#### Solution:
1. Un-:
- honest → unhonest
- sincere → unsincere
- regular → irregular (Note: "Regular" uses "Ir-" instead of "Un-")
- possible → impossible
- patient → impatient
- expensive → inexpensive
- formal → informal
- correct → incorrect
- polite → impolite
- sensitive → insensitive
- responsible → irresponsible
- comfortable → uncomfortable
- modest → unmodest

2. Ir-:
- regular → irregular
- capable → incapable
- logical → illogical
- loyal → disloyal

3. Im-:
- possible → impossible
- patient → impatient
- polite → impolite
- sensitive → insensitive
- practical → impractical

4. In-:
- expensive → inexpensive
- formal → informal
- correct → incorrect
- polite → impolite
- sensitive → insensitive
- responsible → irresponsible
- comfortable → uncomfortable
- modest → unmodest

5. Il-:
- logical → illogical

6. Dis-:
- loyal → disloyal
- friendly → unfriendly (Note: "Friendly" uses "Un-" instead of "Dis-")

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Part II: Write the Correct Negative Adjectives

#### Instructions:
Fill in the blanks with the correct negative adjectives.

#### Sentences:
1. I suspect he isn't honest. In fact, I think he's quite _________.
2. Sometimes Ann doesn't behave in a responsible manner. She's quite _________.
3. This arrangement isn't strictly legal. Some people would regard it as _________.
4. Nick's not very capable. He's _________ of making sound decisions.
5. This scheme isn't very practical. In fact, it's quite _________.
6. It's not possible to do this exercise. I think the numbers are wrong. It seems _________ to do the task.
7. Sarah doesn't like her new school. She doesn't know anyone. She's not happy here. In other words, the girl is really _________.
8. Maybe it's not logical, but my best friend lives in another country. Everybody in my family thinks that it is _________.
9. He was punished for not being obedient. He was very _________ to his father.

#### Solution:
1. dishonest
2. irresponsible
3. illegal
4. incapable
5. impractical
6. impossible
7. unhappy
8. illogical
9. disobedient

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Part III: Use One of the Adjectives in the Box + a Negative Prefix

#### Instructions:
Use one of the adjectives in the box (`Sensitive`, `Expensive`, `Regular`, `Formal`, `Polite`, `Friendly`, `Patient`, `Sincere`, `Loyal`) with a negative prefix to complete the sentences.

#### Sentences:
1. The teacher told his students to learn twenty _________ verbs.
2. Mrs. Brown is really _________. She never wants to talk to anyone.
3. Susan has no intention of being _________ to his friends.
4. Adam is so _________. He never wants to explain things twice.
5. These window locks are _________ and effective.
6. John said he was sorry, but they were sure that he was _________.
7. It is very _________ to tell people you don't like their clothes.
8. These parties are almost always _________ there is no dress code.
9. They were sitting in a very _________ position.
10. Mr. Black thinks it is very _________ of Tom to think he can do just what he likes.

#### Solution:
1. irregular
2. unsociable (Note: "Unsociable" is not in the list, but it fits the context)
3. unfriendly
4. impatient
5. inexpensive
6. insincere
7. impolite
8. informal
9. uncomfortable
10. disrespectful (Note: "Disrespectful" is not in the list, but it fits the context)

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Final Answer:

Part I:
- Un-: unhonest, unsincere, informal, incorrect, impolite, insensitive, irresponsible, uncomfortable, unmodest
- Ir-: irregular, incapable, illogical, disloyal
- Im-: impossible, impatient, impractical
- In-: inexpensive, informal, incorrect, impolite, insensitive, irresponsible, uncomfortable, unmodest
- Il-: illogical
- Dis-: disloyal

Part II:
1. dishonest
2. irresponsible
3. illegal
4. incapable
5. impractical
6. impossible
7. unhappy
8. illogical
9. disobedient

Part III:
1. irregular
2. unsociable
3. unfriendly
4. impatient
5. inexpensive
6. insincere
7. impolite
8. informal
9. uncomfortable
10. disrespectful

Final Answer:
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\text{See detailed solutions above.}
}