Page 84 - Grammar for Great Writing B

Grammar Forms

6.1 Kinds of Modals

Modals Example (modal + verb)

Single-word can might will Ducks can fly up to 60 miles per hour.
modals could must would In the future, all cars could be electric.
may should Scientists may find a cure for cancer soon.
Students must take a statistics class in their first
year.
It would be a mistake to disregard this research.

Phrasal be able to Ducks are able to fly up to 60 miles an hour.
modals be supposed to Freshmen have to take a composition class.

have to
ought to

Notes
1. Use a modal with the base form of the verb.
Most people should eat more fruit.
2. An adverb of frequency usually goes between the modal and the verb.
People should never text while they are driving.

6.2 Modals: Negatives
Single-word Modals: Negatives

modal + not + verb Politicians should not accept large contributions.
• The modal can + not are joined as cannot. Legally, politicians cannot accept bribes.

Phrasal Modals: Negatives

do / does + not + have to + verb Applicants do not have to provide references.
did + not + have to + verb The witness did not have to appear before the
court.

am / is / are + not + able to + verb The manager is not able to authorize the budget.

was / were + not + supposed to + verb The jury members were not supposed to discuss
the trial.

74 Unit 6 Using Modals in Sentences

Copyright 2018 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s).
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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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