Page 88 - Grammar for Great Writing B
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Common Errors
Common Error 6.1 Does the modal need to?
can cause
Drinking coffee in the late afternoon can to cause sleep problems.
to
People who have trouble sleeping have watch their coffee consumption.
^
RemembeR: Single-word modals (such as can, must, or should) are followed by the base verb. Do not
add to. However, phrasal modals (such as have to, be able to, ought to) include the word to.
ACTIVITY 5 Common Error 6.1
Read the following sentences. Underline the modal and verb in each sentence. If the modal + verb form
is correct, write C on the line. If it is wrong, write X on the line. Then write the correct modal and verb
above the sentence.
1. In the future, the development of new technologies may to continue to make work easier
and better for employees in many different fields.
2. Many parents believe that their children should to wear helmets when playing soccer to
protect them from head injuries.
3. Until the laws changed in the United States in 1978, women were not able to keep their jobs
after they got pregnant.
4. In 2008, Chinese Olympic officials were worried about rain on the opening and closing days
of the Olympics. They seeded the clouds with silver iodide to make it rain early so there
would to be no rain on those days.
5. Although we recycle plastic, we must to find alternatives to plastic wherever possible.
6. Some psychologists believe children are too busy these days and that they ought to have
more free time on their own.
7. Many students believe they have to complete internships in their field while they are still in
school in order to get a job after they graduate.
8. One function of a turtle’s shell is to protect its head, but some turtles, such as Loggerhead
turtles, cannot to put their heads into their shells.
78 Unit 6 Using Modals in Sentences
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Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it.
Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-203
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